hey blades just found these mini carbon filters by hamlitonbeach called true air I think there around $16 found them at a pharmacy chain store. haven't used one I have a phresh filter but thought the info might be useful. my bad if its old news I didn't do much research. these things use 17 watts of power and have a built in fan they say it lasts 120 days and the hamliton beach website sell replacement filters 3 packs for around $11. wondering if anyone has tried these?