[This review was collected as part of a promotion.] Our daughter with special needs had severe breathing issues. I started buying these filters 15 years ago for her. They definitely helped with her allergies. I made sure to put the sticker on the calendar to remind myself to change it at 3 months. I highly recommend.

[This review was collected as part of a promotion.] We really enjoy this product. We've bought a few of them now and they work great. Only thing is, and the reason for the 4 stars, research showed us that there should be at least 18 peaks per ft. for max. efficiency, this only has 17.

Living in the dusty desert we need extra filtration. This baby scrubs the air nicely. Less dusting in our home for sure as long as we keep window opening to a minimum. Also have a large dog and 2 cats, son was having trouble with cats but after this filter he has noticeably gotten better with allergies. I do wish it was more affordable but for some reason these things are not cheap to produce! It is worth the extra price than those tissue filters that pretend to be helping air quality.

[This review was collected as part of a promotion.] I've been purchasing these filters for years. They do work for allergens. I replace mine every 2 months versus every 3. I don't know if that makes a difference or not, but my allergy to dust is so significant, I don't want to push it out 3 months.

[This review was collected as part of a promotion.] I've bought them from the local independent hardware store for several years. It's just the right level for my needs. I have two sizes for two different air intake registers. Recently they haven't been able to get one of the sizes from their wholesaler, though I've gone back four weeks in a row. Frustrating.

When I purchased a new A/C system the technician recommended this air filter. I started using it and was extremely satisfied. Tried one or two others from the Filtrete line, but this one fit my needs the best given my allergies. Unfortunately purchased a less expensive one, and ended up changing it out with a Filtrete within 2 weeks! Now I am totally sold on Filtrete.

[This review was collected as part of a promotion.] I have been using this filter for a long time. My whole family suffers from enviromental allergies and this helps a lot. I love to save a buck but with our air quality, I will not buy the knock-offs. Try it for yourself!

I dont understand why these are much bigger 30x20x1, I have to squeeze & bend them and tape it to make itfit. Very reluctant to buy again since these are excellent filter for the money. All the other brand fits, even the more expensive Filtrete Healthy Living filter fits. 3M need to cut the length by atleast 4mm.

[This review was collected as part of a promotion.] I have used Filtete filters for years and have found them to be the very best. I am 75 years old and these have given me cleaner air. How do I know? I have a very bad case of allergies,even to the point of having to take shots. Believe me I know when an air filter is doing the job correctly. I hope you will try these as you will thank me.

[This review was collected as part of a promotion.] Our house design puts a lot of pressure on the filter with 2 pets and 3 ppl... 2 with bad allergies. I know when it's time to change the filter because my allergies return very suddenly! HUGE difference.