The case has been made about the hazards of polluted indoor air: Dust made up of dirt, pollen, germs, fibers, mold spores, hair, pet hair, dust mites

The case has been made about the hazards of polluted indoor air: Dust made up of dirt, pollen, germs, fibers, mold spores, hair, pet hair, dust mites and more gets drawn into your heating and ventilation system. These particles will pass through the furnace filter and back into the room air or it accumulates on the fan blades, grills or in the ductwork. This build-up can reduce air flow up to 40%. It is also a breeding ground for bacteria and molds that can cause allergic reactions in many peop...

The case has been made about the hazards of polluted indoor air: Dust made up of dirt, pollen, germs, fibers, mold spores, hair, pet hair, dust mites and more gets drawn into your heating and ventilation system. These particles will pass through the furnace filter and back into the room air or it accumulates on the fan blades, grills or in the ductwork. This build-up can reduce air flow up to 40%. It is also a breeding ground for bacteria and molds that can cause allergic reactions in many people and is also a source of most odors. Remember - most problems with indoor air quality are invisible and odorless and cause for major concerns.