I bought this product because it was the right size to replace my Electronic Air Filter, that had died. I installed it and all seemed well. After about 1 month I noticed the A/C unit was running continuously and the temp in the house was going Up. I noticed that very little air was coming out of the vents. Turns out that the filter material had sort of Swollen-up and cut the width of the 'pleats' by more than half. Basically, it was like having a 30-day filter in your furnace for a year! After de-frosting the unit and mopping up all the water, all is now normal with a different filter. I would like my $30+ back please!

I have been using Filtrete filters for about 11 years at my "retirement home". This is the last house I am buying my wife told me when we purchased this one. It is a small ranch and it is easy to keep up. I love the Filtrete filters because I hate to dust.

We have a shih 'tzu dog and a siamese cat. Although shih 'tzu's don't really shed and have to be groomed, they still have dander. We switched from the basic, inexpensive furnace filter to the Filtrete Allergen Reduction filter when our son started showing symptoms of allergies. We feel better knowing this filter can trap smaller particles that could cause breathing problems, especially while he sleeps. Our dog is all over the house, so we know he could be distributing dander everywhere. But our cat sleeps most of the day, so we don't think he contributes much to poor air quality, except when he uses the litter box. When the Filtrete filter is removed, it's easy to see what it has trapped, because the media is gray, compared to the pure white of a new one. What a great feeling to know those particles are stuck to the Filtrete filter and not inside our family's lungs.

[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.

Filter says 16x25x4 but it is actually 4.25 thick! Does not fit in my furnace which is exactly 4.0" This is an extremely frustrating problem and every store carries the new 4.25 filter and apparently nobody makes or carries the old 3.75's anymore. I could cram a 4" in there but not one thats 4.25. Trust me, I tried.

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 was using the regular version of filters and they worked but weren't the best for our house. I switched to the healthy living ultra allergy filters and they have helped so much! I live in the desert with two large dogs, a husband with lots of allergies and tons of dirt and dust! These are definitely helping a lot more! It feels good knowing I am helping my family stay healthier!

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've been using this type filter almost 3 months, and I've got to tell you that it's a great improvement over reusable filters that I was using. You can see all of the particles it collected...yes, it is DIRTY! I couldn't really see the dirt on the washable ones. I've noticed that there is less dust collecting in the house' big plus! Haven't noticed reduction of airflow nor higher energy bills. I'll continue using this filter...a little expensive to me- but we'll worth it!

[This review was collected as part of a promotion.] Bought the 1900 mpr filters and installed them. After a half hour of operation, I found breathing difficult and noticed a strange odor. Are these filters treated with some chemical? Not happy, considering the price of the filter.