It got to the point of needing to replace the A/C filter every 3 weeks

When I moved into our recent house, the house inspector was telling me that I should avoid leaving windows open for long periods of time.

  • Apparently this region has a lot of dust, pollen, and fungal spores that are floating in the air outside.

Leaving windows open for hours or longer invites all of these particles into the house. They settle on surfaces and get into the air that you breathe every fifth that you’re home. The house inspector was right, because I still deal with deranged amounts of dust and dirt despite leaving our windows shut at all times. It gets into the home whenever I open the front door to walk outside. When I come back indoors, more of the airborne particulates get in. No matter what, I find a thick layer of dust on the surface whenever I go to replace our cooling system filter. At first I tried to get more than two weeks without replacing the air filter, however now I can barely get by for more than two weeks without needing to put in a new one. I decided to supplement our central cooling system with a HEPA whole-home air purifier. I run this machine in our family room as well as leave it on the floor so it collects the dust and dirt that gets walked into the home from outside. Now the filter in the whole-home air purifier gets dirty so the a/c filter lasts much longer. That also means there is less contaminant getting into the cooling system altogether, which will result in cleaner air while the machine runs as well as cycles.