This filter was restrictive enough to cause my evaporator to start icing up. Should be labeled that a HVAC technician needs to adjust refrigerant charge or up the speed tap on blower motor.

Used the Filtrete 2200 1" MPR filter until we had the furnace/air conditioner system replaced last year which has a 4" filter but the Filtrete 4" filter maximum filtration is a 1550 MPR...wish it came in the 2200 MPR.

Our HVAC was installed over 8 years ago. We change the filter every 6 months at during our spring/fall checkups. During a recent home inspection for our refinancing. The inspector asked did we recently change the airvents and ducts?

I usually have used these in the past and recently purchased a different brand. I prefer these. They are better constructed and appear to better clear the air.

I've been buying the Filtrete filters for at least 15 years, and as they've increased the quality of the product, I've moved with them. So far, at 75, with a couple of dogs, and candle burninf, and wood stove, I'm still well. Thank you Filtrete!

I have used this air filter in my home and it noticeably reduces the amount of allergens. Also amazing how much it picks up when it is time to replace. A great product.

I DON'T BUY ANY OTHER FILTER. I HAVEN'T FOUND ANOTHER FILTER THAT WORKS AS WELL AS THIS ONE. SINCE I SUFFER FROM ALLERGIES, THIS FILTER MAKES IT EASIER TO TOLERATE IT. MY EYES DON'T ITCH ANYMORE.

I upgraded from the Allergant Protector (also a great filter) just to see if I could tell a difference. I can! The air seems cleaner and it gives me peace of mind knowing that it helps with bateria and viruses.

[This review was collected as part of a promotion.] I've been using these filters for several yrs and they are great. I originally bought them because my son has asthma.

I’ve been using this filter for years now and my wife can breath freely not bothered by her multiple allergies no matter what’s going on outside with the pollen count!