Duststop Premium Electrostatic Pleated Air Filter - 16-in x 25-in x 1-in - Synthetic - 2-Pack. If you're looking for a way to clean the air around your home efficiently, this Duststop electrostatic furnace filter might just be what you need. It has a MERV 8 efficiency rating. It's also a good option for households with pets. This versatile filter can catch several unwanted particles like debris, lint, dust mite debris, mould spores, pollen, smog, smoke, and bacteria.