Review on Filtrete Allergen Defense Furnace Filter: Enhanced Filtration for Allergies by Daron Ellis

These things do the trick for a product that I don't think is worth mentioning. My air is filtered, my air conditioners are working, what more can I say? I can't tell what the difference is to the purples I've used which were more expensive and supposedly catch more allergens. My wife and I have mild seasonal allergies and getting into an air conditioned home with the filters running relieves the pain. I like the price when I buy them in bulk, I think I change them twice a season - once at the end of spring and then once in the middle of summer. I have two blowers so I use four per season. Two are left for next season if I want to change them I will order again.