they seem to do a good job my spouse and i seem to be sick less since we have started using the merv13 possible problem is that 2 AC guys have said you shouldn't use anything over merv 8, because it makes the AC unit work too hard.i don't care, because i feel like the air quality is worth it...........
So very happy with Filter Buys monthly program and quality filters. I purchase the medical quality filters that trap an amazing amount of particles that we would otherwise be breathing. Great service!
These filters are custom made to your exact size and are top quality. So much better than you can buy in a store, and delivered right to your door are a very reasonable price.
Perfect site to find those hard to find filter sizes. Quality is great, website easy to navigate, and shipping is quick. Go for it, youll be pleased you did.