Review on 🌬️ Nordic Pure 20X30X1 Pleated Furnace Air Filter by David Bar

Before I bought this package, I searched the internet for the meaning of "MERV" and wanted to find something special for my family's needs without spending a fortune. We have small critters and tons of dust at home, living in the desert, we have to constantly change filters and dust from every surface of our house. They work well for what they are and last surprisingly longer than big store bought brands. About once a month I would substitute a similar brand for twenty bucks. In the summer, even with two units running, we can work with them for about two months before they are swapped out. Definitely worth trying.