Filtrete MPR 1900 24 x 24 x 1 Healthy Living Ultimate Allergen Reduction AC Furnace Air Filter, Guaranteed Airflow up to 90 days, 6-Pack

Been using these for years - will keep on using them - great quality for allergies! :)

My house uses forced air for heating. The disadvantage of such a system is that it distributes the dust in the air everywhere in the house. However, it is supposed to be possible to filter out the dust. Over the years, I have steadily increased the quality of the filter that I use for my forced air heating system. However, until now I have not noticed any obvious difference in my allergic reactions that seem to start with the heating season. There are cats in my house. I have read that cat dander, tiny flakes of cat skin shed by the cats, is five times smaller than household dust particles. It stays in the air much longer than ordinary dust before it settles. Because of its small size it requires a more efficient filter to get it out of the air. Until three years ago, I used of variety of filters with mixed results. However, then I started using the 3M Advanced Allergen Filters, the ones in the blue wrapper. These have a 3M Microparticle Performance Rating of 1500, and a MERV rating of 12. MERV stands for Minimum Efficiency Reporting Value produced from a test designed by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE). A higher MERV rating indicates better filter performance. 3M uses particle data between 0.3 and 1.0 micron size to calculate a Microparticle Performance Rating or MPR. The higher the MPR, the better the filter. However, higher rated filters cost more. Here are some of the Filtrete filters offered by 3M: Dust & Pollen Filter, Microparticle Performance Rating 600, MERV rating of 8 Micro Allergen Filter, Microparticle Performance Rating 1000, MERV rating of 11 Ultra Allergen Filter, Microparticle Performance Rating 1250, MERV rating of 11 Advanced Allergen Filter, Microparticle Performance Rating 1500, MERV rating of 12 Ultimate Allergen Filter, Microparticle Performance Rating 1900, MERV rating of 13. The difference made by the Advanced filter was immediately obvious. My running nose stopped running. I assume that the new Advanced filters must be taking out more of the dust in the air including the cat dander. I have not noticed a change in the speed of the circulated air. More recently, I have started using the newer Ultimate filter. It works better than the Advanced filter. The additional cost of the filter is worth it if you have allergies or pets. However, if you are happy with a lower-rated and lower-cost filter, then continue using that one. I suggest that you check Amazon and vendors on the web to get the best price.

Very nice

Excellent filter. Noticeable reduction in dust in the house since switching from basic filters to this Filtrete Ultimate filter. Have seen absolutely no extra taxing on the blower motor or other parts of the heating/ac system. Highly recommend the filter. I also like the packaging -- individually wrapped filters in a sturdy shipping box. The filters stay clean and I can store them in the box (I cut off a flap or two). Excellent purchase!

I bought these to replace the filter I was using, which was a multi-use filter (just wash it off). Unfortunately, that filter just wasnt doing the job so I decided to go with disposable ones from 3M. I have two cats and the amount of dust that was floating around the house was insane. After a couple of weeks running one of these 3M filters, the amount of dust noticeably decreased. Now, having been running these for about 5 months, the air quality is noticeably better. These filters are meant to be replaced every three months. The only thing I will mention is that, if you havent had a working filter in awhile or you happen to live in an area with a lot of dust (have a lot of pets, the desert, etc), you may need to replace them more often. Other than that, I recommend these!

works well

Quality filter.

I have used Filtrete MPR 1500 before and I thought they were good. But these are superior at a minimal price increase. The air quality is fantastic.

Utterly painless to use, and my allergies are better controlled, possibly also household dust.

This is one of the higher end filters that Filtrete makes. We got this specifically because we have young kids and a dog. These filters do a great job keeping the air in the house clean and fresh. we typically change out the filter every 6-8 weeks.