Filtrete by 3M, 16x25x1, Elite Allergen Reduction HVAC Furnace Air Filter, 2200 MPR, 1 Filter

Just opened my box and it's one filter the picture says 4 filters so I assumed it was 1 package of 4 filters very miss leading but I see where I went wrong horrible marketing though

[This review was collected as part of a promotion.] I have been using these Healthy Living 2200 filtration level filters for a long time. I have 2 cats and wanted to deal with their dander and shedding. I must admit that from time to time I wondered if they were really worth the price, as they aren't cheap. I now have an answer to that wonder. I had a kitchen fire recently that resulted in a lot of damage to the kitchen, and smoke damage to the whole house. Once things calmed down, I thought about my air conditioning unit. I thought of all of that smoke being sucked into the unit and was petrified to check the air conditioning returns. When I opened the first cover my heart sank when I saw the filter, as it confirmed the serious nature of the damage. It was totally black with clumps of debris all over it. When I pulled the filter out and flipped it over, I was totally shocked at how well the filter worked! There was very little black residue to be seen!! I became a believer in that moment. I will never question the value of this filter again and I am a customer for life!

[This review was collected as part of a promotion.] I use these with a box fan to bring cool night air into my apartment, while filtering out the smoke particles from the wildfire smoke being blown into my area. They come in a number of sizes that allow you to open a window to a minimum, and keep the worst of the air pollution out. I use a 20x20 and a 20x25 to cover a 20x45 opening. Once, overnight, the air quality unexpectedly went from mod to unhealthy, and my apartment was filled with smoke. Ran my fan with the filter after closing all the windows, and it cleared it up. I advise all my co-workers to use this method, and filters, to protect their lung health.

[This review was collected as part of a promotion.] This last spring, I purchased a pkg of 3 2200 Healthy Living filters, changed every 3 mo. or less, and just installed 3rd one. My allergies to dust, mold, etc.in the house are rarely noticeable now, since I began using this higher filtration filter. (Even on days when it was clear out & I aired out / cooled the house in the early morning hours by opening the windows for an hour or so.) We also had a terrible year of forest fires, bringing in some days with actual warnings of "unhealthy air". It was difficult on those days for anyone to breathe outside without using high particulate filtration masks; however, I did not have a single day of smoke smells or allergy reactions while in my home. I highly recommend this filter to anyone with such issues. Great job!!

Been using this filter for a few years now. The 1st thing you notice is your house stays cleaner! 2nd is the filter get used up pretty fast. So replacement for us is about ten weeks.