Air Filtration - Expert Commentary

What’s In Store For HVAC?
What’s In Store For HVAC?

The past six months have been busy for those in HVAC as offices are updated and made safe for people to return. In addition to the various standard checks that need to be carried out, more care is being taken in relation to air movement and filtration to prevent the spread of disease. There is evidence that at least some of the COVID-19 virus can remain suspended in the air and infectious for up to 3 hours. While this is not the main form of transmission, it is vitally important, especially as we are seeing a second increase in infections, that all measures are taken to prevent the spread of the disease. Sick building syndrome In addition to the fundamental elements of HVAC in public buildings, the sector should be looking to the future of technological use; whether COVID-19 is completely wiped out or lingers in the population, we may be at risk of more new diseases in the future. Although maintenance is one of the least visible of building services, it has long played an important role in ensuring the health of buildings. Decades ago, the concept of sick building syndrome was first introduced, showing quite how important our environment is to health. Now, we are being reminded of this on a daily basis in ways that have never been under such scrutiny. We are suddenly hyperaware of what we have touched and who else is breathing our air. In many ways, this new awareness of the unseen is a boon for the sector that has so long been behind-the-scenes, but it also puts it to the test. Potentially stagnant pockets There are numerous recommendations from experts on how to increase safety Governmental guidelines have not specifically required that ventilation and air conditioning be increased in the workplace. Yet, there are numerous recommendations from experts on how to increase safety. At the low-tech end of the spectrum, the use of ceiling and table fans to increase movement in potentially stagnant pockets of air has been suggested. At the other end, technologies that have long been growing in popularity, such as remote monitoring, will really come into their own in the coming months. A particular challenge for the industry as workers return to the office under social distancing guidelines will be accessing certain areas for maintenance. For as long as the virus remains in the population, risk assessments for work will be more complex and non-essential jobs will likely be put on hold where possible. Optical remote sensors Intelligent technology and monitoring systems are already driving the market and will play a role in minimizing contact with others when visiting a site. There is already a great range of tools available: wired sensors, wireless sensors, and optical remote sensors. These allow organizations to monitor vibration, temperature, acoustics, and the power of numerous assets remotely and in real-time. Any issues can be addressed as soon as they arise, minimizing the cost and time that an engineer may need to be in the building. Installing these technologies while buildings are still unoccupied or only partially occupied will also reduce the risk of exposure of engineers to the virus and will improve the efficiency and prolong the life of important assets. Whether a second lockdown takes place or not, these tools will protect building services. Motion-Activated air conditioning Other sensor-based features such as motion-activated air conditioning also have great potential Other sensor-based features such as motion-activated air conditioning also have great potential. These can manage the new hygiene anxiety which pervades public places at the moment. In the longer term, they can be a means of building sustainability practices into the workplace, using power only when needed. Internet of Things (IoT) features such as occupancy sensors have long been growing in popularity to create buildings which are more energy-efficient and promote productivity. Many of these features are demonstrating added value during the pandemic. Occupancy sensors, for example, can be used to ensure that buildings do not exceed safe numbers for social distancing. HVAC systems will be integrated ever further into the IoT approach. Some features of virus reduction, however, have posed a challenge for systems. Air conditioning systems Air conditioning systems, for example, can best reduce the risk of viral transmission through increasing the amount of air which is brought in from the outside into the systems. This will reduce the amount of recycled air but will also increase the temperature fluctuations within the buildings. Other recommendations have included reviewing ventilation strategies, increasing ventilation operating times, deep cleaning filters, and replacing filters more often. Cutting corners on anything which reduces the risk of virus spread will only be a greater loss to the client All of these can potentially see an increase in time and cost required by the client at a time where many companies have been stretched financially. Cutting corners on anything which reduces the risk of virus spread will only be a greater loss to the client in the long run if their employees lose time to illness but it still may be a temptation. Strong working partnership FM providers must work closely with clients to understand their individual fears and needs in such turbulent times. For Anabas, we believe demonstrating expertise and experience is a means of reassuring organizations that they are in safe hands. The future of the pandemic is still unpredictable. While its elimination is hopeful, it is still well worth the investment for many organizations to install the tools which minimize the risk of infection of COVID-19 - or any future infections. Clients are looking for certainty in an uncertain world and data-driven insights and real-time monitoring are ideal ways to provide this. However, the reassurance that comes with a strong working partnership will also be more important than ever. Communicating developments and what they mean for the client, as well as assuring them their priorities are understood can set a provider apart.

The Efficacy of Portable Air Purifiers in Reducing COVID-19 Transmission
The Efficacy of Portable Air Purifiers in Reducing COVID-19 Transmission

Our world plunged into a new set of uncomfortable norms in 2020. Mere months ago, life for much of the planet chugged along at its customary monotonous pace. Then, without forewarning, an insidious health threat thrust upon us. COVID-19, colloquial for SARS-CoV-2, is a novel coronavirus that originated in China in late 2019. It quickly burned around the globe like a dry brush fire. Not since a hundred years ago has humanity confronted mask wearing and social distancing in efforts to prevent suffering on a pandemic scale. A single COVID-19 viral particle is extremely small at 0.06 microns. This pure form of COVID-19 is not found outside a laboratory and would not survive even if it made its way into the environment. A single sneeze can eject 200 million COVID-19 particles into the airInstead, SARS-CoV-2, when expelled by infected human hosts, is encapsulated by mucus material. Hosts shed airborne viral particles in two modalities: droplets and aerosols. Droplets are about 1 micron while aerosols approximate 0.5 microns. Millions of viral droplets and aerosols are sloughed-off by talking, laughing, coughing, sneezing, singing or simply by breathing. A single sneeze can eject 200 million COVID-19 particles into the air. Portable air purifiers provide a potent tool in the fight to reduce the spread of COVID-19. The selection and deployment of an appropriate purifier are instrumental in lessening airborne viral droplets and aerosols. Advanced purification units can sterilize air as well as trap pathogens. This best-of-both-worlds approach to disease prevention is vitally important. HEPA Filtration An air purifier must have a medical-grade HEPA filter if the goal is trapping airborne pathogens. HEPA filters remove 99.97% of particles down to 0.3 microns in size. HEPA has different levels. The H-values of HEPA range from H10 through H14. Medical-grade HEPA is H13 or higher and provides filtration efficiencies of 99.95% of 0.1 micron-size particles per liter of air. As a result, medical-grade HEPA is highly effective in COVID-19 droplet and aerosol elimination. Clear Air Delivery Rate Clean Air Delivery Rate (CADR) is a critical metric of a purifier's ability to remove particles of a given size and is measured in Cubic Feet per Minute (CFM.) This drastically differs from a CFM metric alone. CFM as a standalone value demonstrates only the volume of air moved through a system without regard to particle removal. CADR is a compulsory and precise method of comparing air purifiers in a standardized manner. Choosing a purifier with the highest CADR is always preferable. Experts recommend devices with a CADR that moves the total air volume of a room through the purifier 5 to 6 times per hour. Portable air purifiers provide a potent tool in the fight to reduce the spread of COVID-19 Ultraviolent Light Ultraviolent Light (UV) is a powerful sterilization strategy. UV is used in medical settings worldwide for this purpose. While utilizing UV in a purifier is advantageous, selecting a device with UV in 254 nm wavelength is paramount. UV outside of this wavelength can excite oxygen into creating harmful ozone molecules consisting of 3 oxygen atoms. Cutting-edge air purifiers have 254 nm UV bulbs formulated with doped quartz. Such doping precludes secondary harmonic UV wavelengths from radiating from the bulb. UV is an invaluable element of air decontamination if ensured UV is 254 nm and doped bulbs are utilized. Photocatalysis Some air purifiers employ photocatalytic Titanium Dioxide (TiO2) membranes to complement their UV. The resulting photocatalysis dramatically enhances the sanitizing effects of UV. A TiO2 photocatalytic reaction under UV radiation provides additional disinfection pathways in addition to UV directly acting upon pathogens. Thus, both direct UV and photocatalysis provide exceedingly effective methods of microorganism degradation and destruction. Other Technologies Other technologies are found in purifiers, such as sophisticated filters to thwart VOC/TVOC compounds and negative ion generation. Negative ions have antibacterial properties, including marked reductions of acinetobacter transmission. Also, negative ions have the beneficial capacity to precipitate airborne PM1.0 and PM2.5 particulate matter, which are impurities that affects health. Advanced purification units can sterilize air as well as trap pathogens With the COVID-19 age upon us, portable air purifiers provide enormously powerful weapons in protecting the health of persons inside enclosed spaces. Air purification coupled with other air quality measures -- such as ensuring a suitable amount of outside air exchange, air agitation with fans and upgrading existing HVAC filters with MERV-13 -- present an effective and comprehensive approach to health and safety.

Intelligent HVAC Solutions: Enabling a Safe Return to Work
Intelligent HVAC Solutions: Enabling a Safe Return to Work

Having spent the last few months working from our sofas, dining tables and ironing boards, many of us have become accustomed to the world of remote working. But we’ve now arrived at a point where many businesses are starting to reopen their doors or have plans to do so in the near-future. Employers will be hoping that a return to work will prove productive, reinvigorating the workforce and driving growth. To this end, however, they will need to instill confidence by demonstrating how they can keep employees safe and comfortable. Bringing employees back to work will be complex. For a start, businesses have had to implement a large number of new safety measures in response to COVID-19. However, ensuring safety in the workplace goes beyond adhering to social distancing measures and anti-bacterial cleaning stations. Behind the scenes, heating, ventilation and air conditioning (HVAC) play a crucial role in facilitating a safe workspace. Whether it’s the systems implemented to limit the spread of the virus, the ongoing servicing of these systems or their wider environmental impact, HVAC solutions and facilities managers (FMs) rest at the heart of a safer return to work. Embracing new strategies for clean air Walking in the building through a new automatic door, most office workers will be greeted with a queue for the lifts and plenty of signage reminding you to sanitise your hands and keep your distance. Some may have their body temperature scanned by a thermal detection camera on entry, which could also count how many people enter to ensure numbers are safe. Others could be met with an anti-virus access point that scans your face using facial recognition rather than a pass, and enforces hand hygiene by dispensing sanitiser before the lifts will open.  Behind the scenes, heating, ventilation and air conditioning (HVAC) play a crucial role in facilitating a safe workspace All of these measures, however strict, are part of the new normal: ‘contactless’ buildings. Designed to limit the potential spread of COVID-19, facilities managers have plenty of options when it comes to keeping people safe. But not all of them are so apparent when entering a building. Some of the most important measures are those we can’t see. A healthy and safe working environment has always relied on a building’s HVAC infrastructure – temperature control, good air flow, and a reliable level of comfort are top of most office workers’ priority lists. But the pandemic has taken this to a new level of importance. As a critical part of their wider health and safety plan, facilities managers can look to identify strategies to increase clean air levels further. This could include increasing outdoor air circulation to decrease pathogen exposure, with smart air handling units. These will enable managers to bring in more outside air to displace potentially contaminated air, by increasing ventilation and air change rates.  Improving Filtration Methods Improving filtration methods is another possibility, by adding additional filters including high efficiency filters and HEPA filters, to trap more particles and increase the percentage of clean air in a building. Portable HEPA solutions are also an option for those who need more flexibility. In addition to air filtration and circulation, it is also possible to use UV-C lighting to effectively ‘disinfect’ the air or surfaces, using ultraviolet germicidal irradiation (UVGI) to inactivate viral microorganisms. These can be installed brand new or retrofitted into existing facilities, to reduce costs for FMs and speed up implementation. These innovative uses of HVAC to limit the spread of infection could have a huge impact on the health and safety of occupants in any building – and this is by no means limited to offices. Within healthcare and laboratory facilities, for example, solutions like room pressurisation, air change rates, humidity and temperature controls are all critical to reduce contamination in the air and on surfaces. A healthy and safe working environment has always relied on a building’s HVAC infrastructure Safety is an ongoing process No matter which HVAC solutions a facilities manager chooses, it’s not a case of installing them and then waving goodbye. As with any good health and safety strategy, constant monitoring is crucial to ensure building occupants are well looked-after – and this also ensures you can get the most out of HVAC investments. For some this means keeping a close eye on how your HVAC equipment runs, to ensure that they’re reaching optimum performance and delivering the best ROI. Working with a partner who can provide continuous service and monitoring is critical, so that the pressure is off FMs themselves. Especially now, having remote monitoring capabilities is an added bonus, so that minor issues can be fixed without an engineer having to visit the site.  For those with smart technologies in place, such as smart connected chillers, FMs may rather be reliant on predictive maintenance and monitoring tools, which use AI and automation to predict issues before they arise, and ensure equipment runs reliably and downtime can be minimised. Whether in person or remotely, good quality service and maintenance of HVAC equipment goes a long way – both to get the best return on investment, and to keep buildings as safe and comfortable as possible. Enabling a smarter and more sustainable workplace HVAC has always been critical to keeping employees happy and healthy at work – but for a long time this has had a negative impact on the planet. Inefficient HVAC systems can give a building a much bigger carbon footprint than it would ideally have.  75% of organizations plan to increase their investment in energy efficiency and smart building technologies Last year, our Energy Efficiency Indicator survey found that 75% of organizations plan to increase their investment in energy efficiency and smart building technologies. The opportunity, then, to overhaul HVAC systems in order to limit the spread of COVID-19 is also an opportunity to invest in more efficient, greener HVAC technologies, built for the future. Taking a holistic approach to your HVAC equipment is the best way to do this, to ensure efficiency gains can be made across an entire building or estate, by connecting intelligent systems. Chillers, for example, with efficiency and intelligence built in as standard can reduce energy use and carbon emissions for a building, or collection of buildings, helping FMs meet energy targets and keeping costs low. Choosing the optimal HVAC system Under current circumstances, the decisions made by FMs are pivotal in enabling business continuity and will ultimately impact building occupants’ comfort and safety. It should therefore come as no surprise that businesses are paying close attention to every move FMs make. Choosing the optimal HVAC system for your building and ensuring regular servicing and maintenance will prove cost-effective and energy efficient. Not only this, but smart HVAC technologies go a long way in enabling a safer, productive and more sustainable working environment. By picking the right tools for the job, businesses of every type can position themselves for growth while remaining as safe and secure as possible.

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Thermo King And Envirotainer Ready For Secure Temperature Controlled Air-Transportation Of COVID-19 Vaccine
Thermo King And Envirotainer Ready For Secure Temperature Controlled Air-Transportation Of COVID-19 Vaccine

Recognizing the critical need for reliable temperature-controlled airfreight solutions for safe transportation of vaccines and pharmaceuticals, Thermo King, and Envirotainer have announced that they are ready to meet the increasing shipping needs of the healthcare and aviation industries. Thermo King, a brand of Trane Technologies is a global provider of intelligent end-to-end active temperature-controlled transport and storage solutions, across the entire cold chain. Envirotainer is one of the global market leaders in active cold chain solutions for air transport of pharmaceuticals. heating and cooling air cargo In 2005, Envirotainer together with Thermo King, developed and produced the first active, heating and cooling air cargo container validated by aviation authorities. This set a new standard in transporting pharmaceutical and other temperature-sensitive products by air. “When a vaccine is ready, the challenge for the pharmaceutical market will be getting it to the patient as fast as possible by maintaining the integrity of the cold chain,” said Francesco Incalza, President Thermo King EMEA. “Our intelligent solutions can help address logistics complexities by maintaining temperature control and tracking the integrity of vaccine shipments at all points along the journey, including during air transport. We are ready to meet the needs for the mass global distribution of the expected temperature-sensitive vaccine.” controlled room temperature Our long lasting partnership with Thermo King has led us to setting new standards in the industry" “Once vaccines become available, we know they will require temperature-controlled air freight and a global distribution in very large quantities,” said Michael Berg, CEO at Envirotainer. “Our long lasting partnership with Thermo King has led us to setting new standards in the industry. We have by far the largest container fleet and network in the industry, and we are ready to support fast and secure delivery of COVID-19 vaccines to the people that need them, wherever they are in the world.” The active containers were designed for the exacting requirements of the pharmaceutical industry. The one pallet RKN e1 container, using Thermo King Air 100 refrigeration system, and larger RAP e2 container, using Thermo King Air 200 refrigeration system, maintain product temperatures in the +2 to +8 Celsius range, controlled room temperature (+15 to +25 Celsius) range or at any chosen set temperature between ±0 and +25 Celsius in nearly any ambient condition. air cargo container Unlike passive containers, the active solutions operate on batteries in-flight, and on the ground, through an electrical connection that maintains the air-cargo container’s inside temperature while charging the batteries. Since their inception, the Envirotainer active containers have performed hundreds of thousands of real life pharmaceutical shipments. The RAP e2 is the most environmentally friendly temperature-controlled air cargo container available in the market. Delivering pharmaceuticals using the RAP e2 emits 0.9kg CO2e per vial shipped. This can be compared to, for example, a smaller passive solution’s 11.6kg CO2e per vial shipped. Both RKN e1 using Air 100 refrigeration unit and RAP e2 using Air 200 refrigeration unit are fully certified by both European Aviation Safety Agency (EASA) and Federal Aviation Agency (FAA), and are qualified as Good Distribution Practice (“GDP”) compliant for pharmaceutical transport and storage.

Trane China Launches Air Cleaning System To Improve Indoor Air Quality And Building Environmental Safety
Trane China Launches Air Cleaning System To Improve Indoor Air Quality And Building Environmental Safety

Trane China has recently launched a new suite of Air Cleaning System that applies advanced technology to reduce containments including particulates, gases and viruses, in indoor environments. The system comprehensively improve indoor air quality (IAQ) and building environmental safety under the new normal with the COVID-19 epidemic, and meet people’s added requirements for a safe, healthy and comfortable indoor environment. As healthcare, business, education and other industries are in orderly operation under the new normal of the pandemic in China, the government and all walks of life focus on how to improve IAQ, especially in public places. Due to the impact of COVID-19, people’s requirements for a safe and comfortable indoor environment have risen to an unprecedented height, which also makes the demand for high quality air conditioning and ventilation system in buildings become a new normal. Anti-virus capabilities “To prevent and control the spread of COVID-19, the State Council, the Architectural Society of China and other industry associations have issued policies, regulations and guidelines for the safe operation of air conditioning and ventilation systems in various public buildings to improve the health of the building environment,” said Steve Yan, president of Trane China. “As a global leader in HVAC, Trane has a long history of innovation. To tackle the challenges in the pandemic, we quickly developed and launched a new suite of Air Cleaning solutions with strong anti-virus capabilities that protects and improves IAQ while safeguarding public health and promoting the restoration of social and economic vitality.” Improve Indoor Air Quality by Advanced Technologies With their oxidation and iconicity, these bactericidal ionic groups can rapidly decompose chemically harmful gases Ultraviolet Germicidal Irradiation (UVGI), High Voltage Electrostatic Filter and Anion technologies, which can be applied together or independently, to improve IAQ and protect indoor environment by providing external connection and plug-in options. This innovative solution can not only quickly and easily reduce the risk of transmission of pathogens, but also effectively degrade toxic, harmful gases and odors in the air, and filter out PM2.5 particles to achieve more effective air cleaning results. Photocatalytic oxidation (PCO), through a process called photo-catalysis, uses the ultraviolet radiation to illuminate the photocatalytic material and combine the water and oxygen in the air for photocatalytic reaction, rapidly producing the high concentration of bactericidal ionic group. With their oxidation and iconicity, these bactericidal ionic groups can rapidly decompose chemically harmful gases and odors, settle suspended particulate matter, kill microbial pollutants such as viruses, bacteria and molds, and convert harmful volatile organic compounds (VOCs) to simpler chemicals, such as carbon dioxide and water. High Voltage Electrostatic Filter UVGI has a dual purpose: its primary function is an energy source for the catalytic reactions of the PCO process, while it also provides a germicidal effect on micro-organisms by using ultraviolet light in the “C” band (UVC) to damage the DNA or RNA and inactivate a wide range of micro-organisms, including fungi, bacteria and viruses commonly found in buildings. High Voltage Electrostatic Filter technology intercepts and filters out the large dust particles in the air, and then kills the suspended bacteria and other microorganisms through the powerful electric field force energy released by the high voltage electric charge instantly, making them lose their bioactivity, so as to achieve the purpose of disinfection and sterilization. Trane Air Cleaning System Our solutions will help reduce the transmission and spread of airborne diseases, such as the influenza" Anion technology can make particles with a size as small as 0.01 micron invisible to the naked eye as well as floating dust and odor molecules sink to the ground, and effectively destroy the molecular protein structure of bacteria and viruses so as to produce an antibacterial effect. Anion technology can also effectively reduce allergens and provide cleaner air. “Our unique Trane Air Cleaning System combines four technologies: High-voltage Electrostatic Filter, PCO, UVGI and Anion technologies. They can effectively remove pathogens and particles in the air,” said Bruce Gu, vice president of Engineering and Technology, Trane Technologies, Asia Pacific. “Our solutions will help reduce the transmission and spread of airborne diseases, such as the influenza, even in areas with high risks, such as medical institutions, providing more effective safety and health protection for indoor air environments in various buildings.” Low air resistance Through testing and certification by authoritative organizations, the Trane Air Cleaning System is shown to effectively ensure a healthy and safe indoor environment. The POC product can kill up to 99.9% of staphylococcus albus, and remove up to 99% of A virus like H1N1. The high voltage electrostatic filter product can achieve a purification efficiency of up to 99.3% for micro-organisms, and an effective filtration efficiency of over 99.9% for PM2.5 particles. The solution has been successfully applied in various market segments and received positive feedback Meanwhile, there is no significant increase in ozone during the process. Furthermore, the solution is characterized by low air resistance and almost no additional energy consumption on the air-conditioning system, which better support the sustainable development and operation of building owners and operators. Safeguard Public Health and Safety As a trusted partner of developers and building operators around the world, Trane has received more than 3,000 inquiries from 11 countries in the Asia-Pacific region, and has signed more than 230 orders with customers from a variety of industries. The solution has been successfully applied in various market segments and received positive feedback from customers in different industries. What’s more, Trane Technologies recently established a “The Center for Healthy & Efficient Spaces”, taking advantage of its internal and external expertise, together with innovative technologies from external experts and partners, to help customers cope with indoor environmental challenges during and after the COVID-19 outbreak, and jointly create a new normal of more sustainable development. IAQ and air-conditioning system In order to provide patients with a safer and more comfortable medical environment, and to prevent the secondary contamination of medical equipment and the invasion of other germs and viruses, the air-conditioning system in the medical industry should not only control the appropriate temperature, but also ensure absolute compliance with air quality standards. A well-known hospital in Nanjing and an elderly care facility in Suzhou of Jiangsu Province have recently applied Trane’s newly launched solution to meet the high standards and strict requirements for IAQ and air-conditioning system. People at educational facilities, which are six times as crowded as commercial and retail venues, are accordingly more exposed to the risk of contracting airborne diseases.  In order to protect the health of students with efficiency and safety, a stable, reliable and efficient sterilizing air cleaning system is particularly important for schools. A middle school in Ningbo of Zhejiang Province is stepping up the construction of its comprehensive gymnasium, which uses Trane’s central air-conditioning system together with the Air Cleaning solutions, to create a healthier, safer and more comfortable environment for students, and provide parents with greater peace of mind for their children’s safety at school. HVAC duct system The health and safety of indoor air is also particularly important for exhibition halls In addition, in early October, Trane Technologies, in partnership with Synexis, launched a more innovative technology in indoor environmental quality, which is incorporated into Trane's comprehensive portfolio of products and services for K-12 schools, aiming to further improve IAQ in school buildings. The technology, which can be integrated into the HVAC duct system or applied as a stand-alone to individual rooms or spaces, uses dry hydrogen peroxide (DHP) to reduce pathogens in the air and on surfaces. Duct-mounted systems The health and safety of indoor air is also particularly important for exhibition halls. An exhibition center in Nanjing also applied the Trane Air Cleaning System for the first time during the construction of the third phase of its venue, to create a safer, healthier and more comfortable environment for visitors and exhibitors. Trane is driving the industry to ensure a safe and comfortable indoor environment under challenging circumstances via proper air handling, filtration, ventilation and purification. Moreover, the Trane Air Cleaning System is versatile, catering to multiple applications, such as fittings to a new building, field retrofit into existing Trane (and other brands of) air handlers and duct-mounted systems.

Trane Thailand launches innovative Air Cleaning Systems With PCO+UVGI Technology to Combat Pandemic Impact
Trane Thailand launches innovative Air Cleaning Systems With PCO+UVGI Technology to Combat Pandemic Impact

Trane Thailand, manufacturer and distributor of Trane air conditioning, parts and solutions, has launched innovative technology solutions for the “Now Normal Indoor Air Quality” to help hotels and shopping malls improve the health, safety and efficiency of their indoor air environments. Trane air cleaning systems use PCO + UVGI – Photocatalytic Oxidation and Ultraviolet Germicidal Irradiation to improve indoor air quality in buildings, such as hotels, shopping malls and office towers. Hotels have been among the first sector to apply the technology as they recover from a pandemic-driven downturn. The tourism sector is one of Thailand’s economic engines, accounting for 18 percent of GDP in 2019. Arrival of tourists from abroad during the first six months of 2020 dipped by 66 percent. Due to the spread of the virus and travel restrictions, tourists are more cautious about traveling and staying at hotels. PCO+UVGI Industry research indicates that HVAC technologies can mitigate the risk of exposure to infectious aerosols “We are the first in our industry in Thailand to launch a new suite of solution that applies advanced technology in commercial air conditioning systems to reduce contamination of pathogens. Industry research indicates that HVAC technologies can mitigate the risk of exposure to infectious aerosols in built environments, though the transmission and mitigation of COVID-19 in buildings is yet to be tested and confirmed.” “ Trane’s unique solution uses a combination of technologies called PCO+UVGI, which can control and reduce contaminants in the air, including particles, gases and viruses,” according to Mr. Phanlop Techasuwan, Managing Director of Trane Thailand. Volatile organic compounds Photocatalytic Oxidation (PCO) applies a process called photo-catalysis, which uses ultraviolet radiation creating powerful oxidizing agents to oxidize many biological contaminants to break them down. In this process, those harmful volatile organic compounds (VOCs) are converted to simpler chemicals, such as carbon dioxide and water. Ultraviolet Germicidal Irradiation (UVGI) has a dual purpose: its primary function is an energy source for the catalytic reactions of the PCO process, while it also provides a germicidal effect on microorganisms by using ultraviolet light in the “C” band (UVC) to damage the DNA or RNA and inactivate a wide range of microorganisms, including fungi, bacteria and viruses commonly found in buildings. High Voltage Electrostatic Filter This unique technology can be installed in larger airside systems or in smaller air conditioning equipment as plug-in units to facilitate retrofits in buildings of different sizes and purposes, without any change in the air conditioning systems. As tested, the solutions are effective in delivering an improved air environment with more than 99 percent effectiveness in removal of both H1N1 virus and microbial contaminants (e.g. Staphylococcus albus bacteria). Besides PCO+UVGI, Trane’s suite of technological innovations in response to COVID-19 pandemic also include High Voltage Electrostatic Filter, Trane Catalytic Air Cleaning System (TCACS), Dedicated outdoor air system (DOAS). Trane also will soon launch new fan coil units designed for the Hotel segment. Trane Technology Helps Hotel Guests Feel Safer Our guests include families with little children and seniors who may particularly feel concerned about health" Mrs. Chanpen Chantanavaranon, Deputy General Manager of Pattaya Park Beach Resort Hotel, says that the COVID-19 pandemic creates concern for her hotel’s guests. To prevent contamination and increase safety, the hotel complies with safety regulations and guidelines and implements safety measures like temperature screening for guests, and masks and gloves for all staff. To further prevent contamination, the hotel recognizes the air conditioning system as one of the key elements for property and environmental management. The hotel is applying the advanced PCO+UVGI technology from Trane Thailand to reduce air contamination risks for two floors of the revolving restaurant tower, each of which can accommodate about 250 - 300 customers per floor. Reduce virus contamination “We are the first hotel in Thailand that is using Photocatalytic Oxidation and Ultraviolet Germicidal Irradiation (PCO+UVGI). Our guests include families with little children and seniors who may particularly feel concerned about health. We look for new technology or innovation to apply at hotel to build confidence among guests as well as other customers.” “Trane’s latest innovative air cleaning systems with advanced technology that can reduce virus contamination will help increase safety in indoor air environment and build guest confidence incredibly to help us cope with the current situation,” Mrs. Chanpen says.

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