Product review (1 stars): Don't waste your money on this
These filters are cheap garbage. They don't have near enough filter/wicking material in them, which is why they need the aluminum construction to hold it up and together. I can run a Kenmore filter on L2 fan speed and keep the room where I want it, but the bestair had to be on L3 and L4. The Kenmore filter lasts longer too. I got 2-3 weeks out of the bestair, but got 7 weeks out of the kenmore.