I bought the 4" filter for my heat pump and it is working great. No loss of air flow and is removing the dust from the air. Will buy another one when it needs replaced.

[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 absolutely love using Filtrete filters. I choose the Healthy Living product because it does and takes care of it all. They work so well I do not even have to dust the furniture anymore. Filtrete is worth every penny and is a time saver to boot.

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.

My furnace technician usually has a less expensive filter to leave with me when visiting for my annual furnace check but when he sees I have a Filtrete Healthy Living Air Filter he says that is a much better filter and I should stick with it.

Put the model 16x25x4 in Bryant furnace, after one run the cardboard retaining material was sucked in and had to destroy it to get it out. As a 3M stockholder I am not happy\.

Space between rails in Lennox furnace for their 5” filter is only 4 7/16”. The filtrete 5” filter is 4 11/16” thick. Going to try filtrete 4” filter that is 4.31” thick.

I prefer Filtrete filters over all other brands and buy them when available but the selection of products is limited at most retailers. Wish the healthy living filters were stocked better.

I purchase the normally 3M 1000 'red color' wrapped filter that I used quarterly. I think it works wonderfully. It is the best product for me for my house, quality wise and price wise.

My 16"X25"X5" filter was 4 7/8 thick. It was about 1/2" too thick for my particular venting. Be sure to measure your filter box before ordering...........