These filters do a great job of capturing all the harmful particles that can cause problems for my wife's COPD. Highly recommend this product.

Very difficult to put in place… very tight fit. Since the filter goes into the ceiling, it is really a struggle to get the filter to fit properly.

Perfect for our 3000 sq ft home. We use upstairs and downstairs. Recommended by our HVAC Service Professionals.

These are not individually “wrapped” so if you only need one, the others need to be covered with something else.

I'm unable to give a review at this time regarding quality or performance. I bought these because they were a good value and I expect they will perform great but until I use them I can't say with certainty.

Love them. Actualky catch all the fine dust and pollen that has been coming into our home, rather than ruining the AC unit by letting it ruin the coils or blower box.

These filters made my furnace not be able to breathe. I had to call a technician to come to my home and it cost me $254 for him to tell me that I needed different filters.

Just started using this product. Too early to tell how it’s working. Not sure I will be able to tell if it works any better or worse than the last filters I used

I've purchased this item several times. Overall I. Stified with its performance The only negative is, the filter turns black (some of them, not all) after about 3 weeks. No smokers in the house. Minimal fried foods, we seldom use candles. My Ac guy said it could be activated charcoal but the package didn't say that. What causes this?

My favorite; they work as advertised