HVAC Whole House Air Filtration – Compare PCO vs. HEPA

Many homeowners want better indoor air quality in their homes.  Many of these homeowners have installed products for whole house filtration that include PCO (Photocatalytic Oxidation) technology.  Basically, the unit is installed in the HVAC system and emits UV light and a photocatalyst (usually titanium dioxide) to produce hydroxyl radicals and superoxide ions to purifier the air.

However, according to the EPA, “Some air cleaning technologies may emit potentially harmful byproducts during operation. For example, PCO air cleaners have been shown to generate formaldehyde, acetaldehyde, nitrogen dioxide, and carbon monoxide.” (1).

So, basically, in some PCO devices that are trying to reduce contaminates, they actually create contaminants!

Air Savvy’s AS400W Whole House HEPA Filtration System is a safe way to help filter the air in your home.  The AS400W unit does not release chemicals into the air for cleaning purposes. The AS400W uses a pre-carbon filter combo to filter out larger particles while the activated carbon absorbs odors, smoke, and some common VOC’s in the home’s air.  Then, the air is pushed through a HEPA filter where it can remove up to 99.97% of contaminants down to 0.3 microns.  The HEPA filtered air is sent back to your HVAC system for circulation through the home where the complete cycle continues throughout the day.

The AS400W Whole House HEPA Filtration System is professionally installed by local Air Savvy Dealers to guarantee proper operation.  For more information on the AS400W, please see our Whole House HEPA Filtration System page.  You can also find a local Air Savvy Dealer on our website to purchase & install.

Air Savvy – Better Indoor Air Quality!

*(1): (Residential Air Cleaners A Technical Summary” 3^rd Edition Portable Air Cleaners Furnace and HVAC Filters EPA 402-F-09-002 | July 2018 | EPA Indoor Environments Division).