Review on 🔍 Crisp Filters 20x20x1 Furnace CF (Pack of 2) by Quinton Wonsley

This is a MERV 8 class filter. Many people think the higher the number the better the filtering. However, this is a wrong opinion. Sometimes (many times!) higher MERV values actually make your oven work HARDER and less efficiently. These filters are suitable for most households. We are currently renting and changing the filter is our responsibility. You have worked very well for us. Just look out for the directional arrows on the side. Getting them right is VERY important! Example: If you have an air vent on the wall, make sure the arrow is pointing AWAY and toward the wall. If there are gaps (and they're almost always small), just put a strip of tape along that edge. Otherwise, dust will run around it.