Type of filter in Residential HVAC unit
Hey guys, I had a house with a centralized HVAC system before, and I want to know what kind of filter is normally installed in a typical residential air handler. I don't know what kind of make or model or even the type of HVAC unit it was for, only that I had one. Are they usually high MERVs like HEPA/ULPA? The fact that it never required or wasn't cleaned is leading me to think it was HEGA or a poorly maintained electrostatic precipitator. Pardon my absolute lack of knowledge with these things but if anyone can give me an answer from the little that I provided I'd very much appreciate it. God bless.
Nordic Pure or Dirty Filters
We use NP 12 MERV. Small loss of pressure, great filtration. They filter so well, we have to change out about every 3-4 weeks-filthy.