The Benefits of a HEPA Filter
Submitted by Ron Peterson on Fri, 10/16/2015 - 10:33More than 70% of American homes have central heating and A/C, but 50% of those systems don’t get a regular filter change. In fact, 10% have never had a filter replacement. For optimum air quality, you should check your air filter every month, and replace it when it looks dirty or after three months—whichever comes first.