WhatsMyCO2 Products and Services http://whatsmyco2.com en-us Wed 07 Oct 2009 15:16:10 GMT Wed 07 Oct 2009 15:16:10 GMT Leaving dirty air filters in your heating or cooling system will reduce air flow, resulting in the blower motor to working harder and longer. Forced hot air or cooling system filters should be changed regularly (at least every three months), which will improve the efficiency of the heating and/or cooling system. The Filtrete™ Dust & Pollen Filter outperforms ordinary pleated, washable/reusable and fiberglass filters. It is up to 20 times more efficient than ordinary fiberglass filters and it delivers up to 3 months of filtering performance. This furnace/AC filter will captures large, airborne allergens like mold spores and large dust particles. The Filtrete filtering material will not support the growth of bacteria, mold, mildew or fungi in normal use. 2008-03-04 01:45:55 http://whatsmyco2.com/product-unit.php?p_unit=27