| 摘要 |
An air vent insert for boosting circulation and/or purifying the air in the room in a safe and cost effective manner is disclosed. The insert includes a housing configured to be inserted into an air duct and covered by a face plate. The housing has a flange portion that rests on the wall or floor surrounding the duct opening and a body portion recessed in the duct to achieve a low profile design. The body portion contains one or more fans and/or air purification units coupled to an electronic control unit. For increased safety, the entire unit operates on low voltage DC power supplied from an AC/DC converter plugged into a standard 3 prong wall outlet.
|
