My air handler pukes on anything thicker (with more flow resistance) than the thin fiber type filters. I tried a spiffy pleated filter and it threw error codes for a dirty/clogged filter and quit operating. Fortunately I'm not in a dusty environment.

Rgds,
Chris W.

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Objects in closer are mirror than they appear.

I use ones that are sort of cheap but have activated charcoal in them to take out odors and such. I have a few dogs that take up space in the viewing room when no one is in there and these filters take the dog smell out of the house.

I guess I could also throw the dogs outside, but they do a great job of scaring away the people who keep putting things in my mail box and whom ever it is that keeps stealing my garbage. Some guys in a big blue truck come by once a week and grab it all; the dogs go wild and the big truck moves away. So I guess the dogs are the ones making them leave.

Lawn guys are also suspect, but the dogs cut them some slack since they see them a lot. Still, I don't think they trust them entirely.

The ones in my link are Merv 11 so they are very fine. I have Nero us animals in the house so it's always got dust and hair.

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