How Is Air Purified?
Every home has a variety of sources of indoor air pollution that can make the air inside several times more polluted than the air outside. This includes the building materials your home was made with as well as your furniture, cleaning products and cooking appliances. If you live in an urban area where the outdoor air is also fairly polluted, your indoor air quality may be worse due to outdoor pollution getting inside. Virtually all homes could greatly benefit from upgrading their air filtration or installing an air purification system. We’ll look at the importance of having adequate air filtration or purification as well as the differences in how each process works. How Your HVAC Filters the Air in Your Home All HVAC systems have one or more filters that provide at least some level of whole-home air filtration. In a central HVAC system, the air filter is located in the return side of the home’s ductwork, where air gets drawn into the system. Most systems have a single air filter that slides into the return plenum, the large sheet metal compartment that attaches to the furnace and/or air handler. This type of filter is typically referred to as a...
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