Designed for excellent efficiency and installation in smaller homes or apartments, ComfoAir 200 comfort ventilation unit can be mounted vertically or horizontally. With a maximum capacity of 125 cfm, the CA 200 has been certified at 92% efficiency by the Passive House Institute. Features include ECM motors for energy efficiency and ease of balancing, summer by-pass cooling, frost protection mode, and optional resistance pre-heater and ERV option. Additional options and accessories also available. The CA 200 is a Certified Passive House Component.