Charlie: Bob in Sugar Land, he says there are many central air conditioner filters to choose from these days. He wants to know which kind, and which air filters, you would recommend.
Tom: The pleated filter, and a MERV 7 or MERV 8. That’s the density of it and the particulates it picks up. But simple, just do that. I wouldn’t go with any of the electrostatics, or anything like that, that’s just too much money for not doing what … Yeah, it just doesn’t do that much.
Charlie: So you’re saying MERV, like … Merv Griffin, kind of?
Tom: It is. It’s M-E-R-V in capital letters, and it’ll be a seven or eight is what you’re looking for. It’s the density of the fabric, and what particulates it picks up. There’s so many acronyms out there. I can’t keep them all straight.
Charlie: One of my air conditioning clients calls the cheap ones rock catchers, because that’s all it catches.
Tom: Pretty much, yeah. The polyester ones, and I think they’re like a two or a three.