We've been using your filters for many years and have had one recurring issue. The housing for the filter doesn't have a lot of wiggle room, but it requires and accepts a 4" filter, so while the filter usually slides in just fine, getting it out is a challenge. It's ok if I am disposing of the old one and installing a new filter, but if I have to pull it for any kind of service, it gets destroyed in the process of extraction and that gets expensive when I have to replace a minimally used filter. My furnace company has worked on the housing and done as much as possible to improve the opening. What I notice is that the cardboard framing that contains the filter does not fit tightly and in fact bulges even on a brand new filter. This frame is what gets caught both going in and coming out of the houing. I would appreciate any feedback you might have pertaining to this issue. I apologize for the long-winded e-mail, but I wanted to clearly describe the issue I have with what is otherwise a fine filter system. Thank you, Harry Saxe

I have been using Filtrete Filters since mid-'80s. I have upgraded with each introduction of an improved version and found they actually DO last 3 months. These filters keep out dust, dander and pollen. At present, I have 2 dogs & 1 cat in the house. My whole house smells fresh for 3 glorious months. They are not as cheap as Brand X, but very worth every penny; considering all they accomplish.

I live in Michigan and my 2 furnaces run constantly. It is extremely important to me that my family breathes clean, dust/allergen free air. Plus, it makes house cleaning so much easier. The filters are high quality, easy to use and I only have to change them once a year. I wouldn't buy any other brand. Filtrete whole house filters work!

I am on my second set of these filters to help clean the air of allergens/dust that harm my wife's breathing problems. These filters make her life better! they capture more of the things in the air than any other product I have used and have made her able to breather easier and better. I am convinced--and I will buy more of these!

I HAVE searched and cannot find a better filter than Filtrete. Not only does it make a noticeable difference in the air quality of our home, it has literally saved our HVAC unit. As do most new construction homes, ours came with the standard 'builder grade' system. Coincidentally, we have had a lot of storms and power surges this past summer. When our system (along with seven others in our neighborhood) burnt out last month, we were miraculously able to replace only the compressor, as opposed to the whole system. Since it came at a bad time for us financially, we had to opt for replacing the compressor only. Our HVAC technician told us that had we not been using good filters and replacing them regularly, that would not have been an option. Even though we will eventually have to replace the whole unit, we now have some wiggle room and time to save up. Meanwhile, our 'builder grade' unit and Filtrete filters are functioning beautifully. Thank you, 3M!!! You saved our lives (quite possibly literally--from this Southern heat and humidity)and allowed us some time to research and save for a new HVAC unit down the road a bit.

Decided to try this filter to see if it could remove household dust. For the last 9 years I have used the 1085 filters but they let too much dust through them. After the merry maids finished I would change the filter then test for dust for a week. These filters allowed dust to accumulate. Not good!

I have started using these filters because of my severe allergies that hit me every summer. This past summer I thought would be a bad allergy season because of all the rain we had earlier in the spring. However I actually felt better all summer and it has to be because of the Filtrete filters that I have stared using. You have a customer for life.

Filtrete is the only air filter I trust and of the options available, this is the best. With a dog in the house and a great need to keep the air clean, this is my go-to purchase. I change it regularly and am always please with how much dander, hair, dog hair and dust it collects! While this might not be *advised* by 3M, when putting the filter in I add a couple drops of my favorite Young Living Essential Oils to help the whole house smell great!

Filtrete filters are the best. I've tried cheaper brands and even though the measurements on the box are what I need, they don't fit my furnace correctly. They leave too much space. The Filtrete filters have a snug fit and really catch all the dirt. I would totally recommend them.

I am asthmatic so CLEAN AIR is not a low end necessity for me - it is a HIGH END necessity. I am very happy with my indoor air quality and knowing that I am able to stay healthier with cleaner air is double payback. I share with all people I come in contact with that what type of house air filter you use to clean your air DOES matter.