Doesnt there need to be a filter in the HVAC system to prevent airborne particles from harming sensitive system parts and to help keep the indoor air clean?
The filter has never prevented debris from collecting on sensitive parts. As a mater of fact, filters add to the debris through the bionesting growth (microbial debris, metabolic toxic gases, allergens and pathogens) that occurs on the filter. In addition, the powerful system fan pulls off the debris growing and collecting on the filter further into the system and out into the breathable space.
