We live in the country, own a feedlot, have 3 kids and have 3 dogs. Needless to say, there is a lot of stuff in our air. My husband and 2 of our kids have respiratory issues. These filters have done a great job of keeping our system as clean as possible in this environment.

We've been using Filtrete Ultra Allergen Healthy Living filters for the past three and a half years. They keep our house literally dust free and fresh. We have two cats as well and appreciate the advantage of having good filters in our furnace that we change every three months.

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.

My family and I moved into our 2800 square foot house in Minnesota almost two years ago. The filter that was in the furnace was not a 3M Filtrete filter and it was disgusting. I bought this product because it was the only filter of this size offered at the store where I bought it. I thought it would be a good deal considering it said that it would last up to 12 months. I'm no dummy, I know that when something says that it'll last up to any amount of time, that time should be cut in half under "normal" Minnesota conditions. Cutting to the chase, this product doesn't even last 3 months, and that's in the fall when the furnace fan never runs! We even had our ducts cleaned before installing our last filter. The product definitely works because of all the "stuff" trapped in it, but for a product to have a label on it stating that it will last up to 12 months, it should at least last 6 month in Minnesota conditions. I would recommend this product to anyone, however I would have to warn them about the replacement period being so frequent.

Upon advice from my doctor to purchase a better a/c filter, I researched and purchased two of these. We quickly noticed a difference in the air quality, my headaches and sneezing are much better now. I am allergic to dust mites and my cats dander - I am extremely impressed. When I clean, there is far less dust accumulated on surfaces in my house which is lovely. After changing the filter recently we found out why - this filter is blocking everything. So great! We are considering investing in higher grades of the Filtrete brand because this one has done so well.

After changing my regular pleated air filters with these, I essentially was able to come off of allergy medicine daily. I used to get allergy shots. Now I very rarely get an allergy flare up. I highly recommend allergy sufferers get this filter. I hesitated beforehand too but thought what do I have to lose.

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 just replaced my Filtrete filter with this 1200 series. You can see the dirt and debris that collects on the filter after three months so you know its working. I just can't imagine my family breathing in that junk. Filtrete filters are the only brand I buy because they are economical and for piece of mind.

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.

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