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Indoor Air Quality & Energy Conservation
Modern buildings, from the not so big to very large, must have ventilation air brought in via the HVAC system. Originally ventilation air was to flush out indoor air pollutants that tend to concentrate due to:
- High people traffic
- Cleaning chemicals
- Off-gassing from furnishings, plastic cases of computers, printers, particleboard
- Pollutants that are carried in on clothing
Many years ago, when air was relatively clean and energy costs low, it made sense to ventilate with outside air. Today, outside air can be extremely polluted from pollution, wildfires, natural disasters and more. This is especially a problem when weather inversions keep air stagnant.
New technology cleans indoor air to achieve lower levels of pollutants than ventilation alone can achieve—and can do it more reliably and economically.
Therefore, since purified indoor air is better than ventilation with polluted outside air, it can replace ventilation air. Reducing ventilation air directly reduces the energy required to operate HVAC systems. It is not uncommon to achieve energy cost savings of between 30 and 50 percent. Indoor air pollutants are harmful but they are a very small percentage of the buildings air. Less ventilation air and more recirculation of purified air preserves the investment in conditioning the air.
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Common Problems
Energy Conservation vs. Indoor Air Quality
Problem: Buildings are equipped with energy conservation products and practices to cut energy costs at the expense of indoor air quality.
An increasing number of commercial buildings use energy conservation products and practices to cut energy costs. In commercial buildings, heating, ventilation, and air-conditioning systems consume the largest amount of energy. But cutting costs often comes at the expense of indoor air quality. For example, when it is very cold or hot outside, the ventilation air duct gets closed to save money.
Solution: The correct equipment, the right filters, and the correct filter media can help clean ventilation air
Installing Total Spectrum® air purification systems that remove pollutants down to 200 nanograms per liter (0.20 mg/m3) of air will beat all other options when it comes to producing clean, healthy air at a low operating cost. Total Spectrum® air purification systems consume much less energy than what’s needed to condition ventilation air. Best of all, it doesn’t depend on the quality of outside air to produce clean indoor air. Air pollution is a major environmental health concern. Even short-term exposure increases the risk of cardiovascular and respiratory health problems. Creating a healthier, more comfortable environment in office buildings, homes, schools, and other spaces does not have to be expensive.
