Quote Originally Posted by Scherf View Post
Ok good to know.... I may try one then and see how it goes.... I just cannot believe how expensive just one 20x20x5 filter is....
That's my point they're really not worth it and as soon as the charcoal evaporates you have to buy a new one. Putting a fan in the window will do the same thing you don't need a filter the filters are used if you don't have ventilation. Then people put them on a fan and circulate the air in the room.


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