Good filter. Although it is advertised as lasting up to 12 months, I feel the need to replace it every 2-3 months. I have a VERY difficult time removing it from air cleaner, as there are no holes in the filter in which to insert your fingers to grab it for removal. A simple design change would make it more user-friendly. I've found that I have to use a knife to cut a hole in the filter cardboard to have something to hold on to. Also, the cardboard strips on the sides usually get caught in my air cleaner, so as I'm removing the filter, I really have to pull hard, tearing the side strips, as I remove the filter.

Been using these for 6 years. They do the job but the 6 pack price has increase 60% in that time. If that rate of increase continues think I'll start looking for an alternative.

[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 had my doubts when I bought this filter but after just a few days we can tell a difference its making in our home. The air is fresher, cleaner and our babies are having less allergy problems. I love this product and will continue to purchase them.

For the second time in a row, when the air flows to the air conditioning unit, this product literally falls apart. It separates from the flimsy cardboard border.

the physical dimensions are > 4", actually close to about 4.5". Be sure you're housing will accommodate 4.5" before purchasing. Can't comment on the function because these would not fit.

We have used Filtrete for years and it works fantastic. Because it works so well, we find ourselves changing the filter more often than the package says. It is amazing how much it collects and keeps out of our air.

With 3 dogs, 2 cats, kids and husband, I need all the filtering I can get. I notice when I forget to change it. Air conditioning was boggind down. Bill seems more.

Our house is more than a century old (built in 1888). Dust particles were magnified in the light that streamed through the over-sized windows. Filtrete filters have given us new appreciation for floor to ceiling sunlight.

[This review was collected as part of a promotion.] I have been using the Healthy Living filters for years (1550, 16x25x4). They work great and help to remove dust, pollen, and pet dander, so I can breathe easier with my allergies.