I cannot imagine ever buying another brand. The two I have work, do not go bad, require only minor maintenance by using a dry cloth on the outside and vacuuming the filter occasionally, and the only real trick is unscrew the bottom where the filter goes and remove the plastic from the filter and compartment before you use it the first time. Otherwise you could mess it up. Other than that, worry free. Great for mold and the like. If you have a furnace filter these machines will help your furnace filters last their normal lifespan.
Rating:
[5 of 5 Stars!]