It must be that time of year because this topic keeps coming up so... here we go again. I moved in the last 2 months into a home with an HVAC system (York heat pump system). This is my first experience with a forced air system, my previous homes were all electric (baseboard & ceiling) heat. (I live in the southwest Virginia mountains.) It appears as if the system installed in my new home has a non-standard air filter. It is 30x30x1 which I cannot find in any stores (even a local HVAC place). Because of this and the potential future problems of obtaining filters I was looking at these permanent, washable filters. I'm looking for recommendations and experiences.
I like the sounds of this Boair 5-stage filter
--Greg