“Physical layout design flaw. All house receptacles are dual. The Clarifion has the exhaust vent at top of unit. If plugged into top receptacle to allow proper venting the lower receptacle is un-usable. If plugged into the lower receptacle the upper receptacle is un-usable except for a very small 2 prong plug or the vents are blocked. If the Clarifion unit had the plug at the very very bottom of unit then it could be pugged into the top and both receptacles could be usable. Most home outlets have at least one receptacle in use for something, clock, lamp, charger, TV, radio, PC, printer etc. etc. (get the picture) making it very difficult to position in a room.”
“I love them. Have one in each room in my apartment. Just plug in and let them do their work. Also work as a night light. No batteries to change. No upkeep. Clean fresh air. Very quiet. Helps with allergies.”