I have to tell you that I was genuinely disappointed when I tried these washable air filters that I had bought. It was a major let down, and reading so numerous great things about washable air filters for the last year made me genuinely confident that this was going to be the best thing I discovered in a long time, and however, when it came time to scrub the washable air filters for the first time they began flaking apart! I could not think it! These washable air filters were genuinely cheaply made and in the long run, I ended up having to go out and buy our regular HEPA air filters, but and I was stuck with these useless washable air filters. I’m not sure if mauve it was a bad brand or bad batch of washable air filters, but all I do think is that I will not waste any more money and try washable air filters ever again. I will stick to what I think which is HEPA air filters which are of the most top quality when it comes to air filters for your central heating, ventilation, and A/C system unit. No matter what, HEPA air filters have never let me down and have regularly kept our central heat and cooling system system laboring great. I may have to pay a bit more for these things, but in the end I would rather do that than have these flaking apart washable air filters which I paid even more for than our regular HEPA air filters! This doesn’t mean that you shouldn’t try washable air filters, but just be warned.