Fil Fresh 2-pak is comparable to name brand, however the first time I ordered the two hepa filters were damaged, one column was defected, meaning it was “askew”, defect in a manufacturing process I believe, I did not report it but I intended to do so, I recommend if this occurs to immediately contact seller to report this or any issues. I use to help air environment which is very bad due to not HVAC, drywall damage ect. I could use an additional as I have a large area to cover. Definitely recommend this product!