Bests & Worsts Reviews from Amazon

Had an unpleasant surprise when my purifier, which has been working fairly well in the two months I've had it, popped up the "change filter" indicator light on me. A representative from the company told me that it's based on running time, not the condition of the filter, so if the air quality is still good it can be reset. Upon checking, the filter was still in pretty good shape, so I'll keep resetting and see how long until the performance degrades. It's still doing a fine job cleaning the air and I haven't had any other issues with it.