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How the VAV Box Affects IAQ

Facilities managers know the importance of maintaining the HVAC system in their buildings. These systems provide fresh clean air and control temperatures and that keeps building occupants comfortable. Commercial buildings have different needs than homes and their HVAC systems adjust performance based on thermal zones. This is done with a VAV box. This system is more efficient, but it's important to consider how the VAV box affects IAQ as well. What is a VAV System?  In HVAC, a Constant Air Volume (CAV) system delivers a continuous supply of air. This is the HVAC system found in many homes. For commercial HVAC systems, however, it’s not as simple as the on and off settings you find in home systems. In larger buildings with many rooms of different sizes, this system is not effective in maintaining comfortable temperatures throughout. Therefore, it’s important to use a system that varies airflow. That’s what the Variable Air Volume (VAV) does. It varies the airflow but at a steady temperature. What is a VAV Box? A simple VAV system supplies air through a ...
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Reduce COVID Risk With These Healthy Building Strategies

As the COVID pandemic continues to affect people and businesses globally, our understanding of the virus deepens. This better understanding allows the medical community to advise building owners and managers on healthy building strategies to reduce COVID risk. For example, a recent report from the Lancet COVID-19 Commission details four strategies building owners and facilities managers should implement to reduce the risk of coronavirus transmission. The commission’s report advises concentrating efforts on reducing the aerosol transmission of the virus through filtration and ventilation. 4 Healthy Building Strategies to Reduce COVID Risk Implementing the following four healthy building strategies helps reduce COVID risk. Facilities managers who use these strategies to improve filtration and ventilation create safer indoor environments for building occupants. 1. Improve HVAC Systems The first step for creating healthy building strategies to reduce COVID risk is improving and maintaining HVAC systems. WTI -- Pure Air Control Services offers a suite of services to health facilities managers do this. HVAC Hygiene Assessment Toward the goal of reducing COVID risk, an HVAC Hygiene Assessment provides building owners with ...
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Clean Coils Save Energy and Money

Operating costs remain a concern for facilities managers and energy use is chief among them. However, maintaining HVAC systems is a way to improve the energy efficiency of buildings. To put it simply, clean coils save energy and money. Coil cleaning saves money on more than energy bills. It leads to fewer repair calls and longer-lasting equipment as well as an improvement in indoor air quality. HVAC Evaporator Coil The evaporator coil’s job is to absorb heat from inside a building. Anything that gets in the way of this important function causes the system to work harder and eventually fail. A harder-working HVAC system uses more energy and that costs money for commercial building owners. It makes sense then, that a clean coil saves energy and reduces operating costs. This is true for hospitals, government buildings, schools and universities, and commercial businesses too.  Clean Coils Save Energy The evaporator coil becomes blocked over time. Dirt, dust, and other debris build up on the coil which leads to insufficient cooling. The system also runs longer and works harder ...
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Assessing Building Air Quality: 3 Ways to Actionable Data

The air we breathe is critical to our health. This is true for the air inside as well as outside. Therefore, facilities managers and commercial business owners need to evaluate their building air quality. A building condition assessment is a way to do this. This evaluation provides information on a company’s facilities that helps them identify risks. Assessing building air quality also provides actionable data for improving HVAC performance, keeping occupants safe, and operating costs low. Assessing Air Quality with Building Sciences Improving building air quality is an important focus for commercial business owners and building managers. The benefits of improving indoor environmental conditions include increased employee performance. Healthy workers miss fewer days of work, have higher morale, and are more productive. For schools and universities, better IAQ means higher test scores. Improving the performance and efficiency of the HVAC system also improves energy efficiency and reduces expensive repair and replacement calls.  3 Steps to Actionable Data to Improve Building Air Quality The systems and methods used in our Building Sciences help stakeholders gauge the impact of ...
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Improving School Air Quality

Aging school buildings across the country need repairs and upgrades. For some buildings, mold is an issue that demands attention. For others, aging pipes give facilities managers concern while for many, outdated heating and ventilation systems fail to operate at the level needed to keep children safe. In the face of the ongoing COVID pandemic, school air quality is not being fully addressed despite the existence of federal funds to address these issues. The Importance of School Air Quality School air quality is important for the health of both students and staff. For starters, improving indoor air quality limits the amount of student absenteeism. Better air quality leads to better learning too. In fact, studies show that improvements to IAQ lead to higher cognitive functioning. That means higher test scores. Better IAQ also lowers the risk of respiratory diseases and asthma and allergies. The benefits of improving ventilation also include lower energy costs as a result of improved performance. Despite the obvious benefits of cost savings and health, schools are not implementing the ventilation improvement strategies outlined ...
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