[This review was collected as part of a promotion.] My nephew stays with me from time to time. He has asthma, which seems to act up on high pollen days. We can have the windows up with the air off and he would need breathing treatments. A couple of minutes with the windows shut and the air being on, lil man is back to normal.

I've been using pleated 3M filters in my furnaces since I built my home in 1996 . I have gradually upgraded to higher MPR ratings as they have become available and am now using the 2800 healthy living filter in both of my systems . I'm extremely happy with this product and both subjective and objective findings suggest that these are high-efficiency filters . As an allergy sufferer I've noticed greatly diminished symptoms and moreover surface dust on furniture is much reduced . I also have a Dylos particulate counter that confirms much reduced dust levels. I was initially concerned that the 2800 filter would clog more readily and need more frequent replacement then the lower rated filters . This has not been the case however , as airflow remains excellent which attests to the high capacity of these filters .

[This review was collected as part of a promotion.] I have two cats, two Labradors, two teenage daughters and myself in my house. There is always dust, dirt &/or dander in the house no matter how frequently I clean. Having this Healthy Living filter in my house gives me peace of mind.

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

Bought 1 4" airfilter that ended up being 5". Thought it was a fluke and took it back to the store. Went to another store and the only brand availabel was 3m again. Bought a 4" filter and once again measuring in at over 4.5" and does not fit. Last time I buy from 3m. Btw our furnace can fit 2, 2" filters perfectly but not 1, 4".

We've been using The Filtrete Allergen Reduction filter #12 for about 6 months now and it does seem to be helping us with our allergies by cutting the amt. of allergens in the house. The Filter also fits perfectly so there is no noise from an ill fitting filter...we've had this problem in the past, but not at all with Filtrete. The dimensions are exactly what they state. Excellent filter. High recommend it.

I use these in place of regular HVAC filters. The 4" depth adds surface are which reduces air flow resistance. My home systems for people with breathing problems includes multiple 20 x 20 x 4 inch filters. My 2400 sq ft home has 5 filters. The efficiency of the HVAC system is not degraded yet the air is best for sufferers of breathing problems such as asthma, RADS, or allergies.

[This review was collected as part of a promotion.] I have been using this filter for many years! We used to buy the cheap filters and had a constant dust problem in our house. Since using this filter there is no longer a problem! The old saying "you get what you pay for" certainly applies here. Well worth the money for a clean healthy home!

We've been using this product for a few years now and with an older home, a cat and a dog, the filter really does a good job in catching a lot of stuff and helping the air stay clean! I would recommend this to anyone needing allergy relief in their air filters.

[This review was collected as part of a promotion.] You just never know what you don't know. These filters do so much to clean and keep the air quality optimal, but if you've never used them then you just won't know that you are actually deciding to breathe less than perfect air.