Panasonic’s Eco Products Division WhisperControl Condensation Sensor Plus ventilation fan offers new timer control features. An adjustable minutes per hour fan timer ensures consistent and controlled ventilation to comply with ASHRAE 62.2. A 20-minute timer delay initiates once the fan is manually turned on; it has a 30-minute delay off timer during automatic operation. A pre-set countdown and hourly fan timer runs the fan for a pre-determined amount of time, then shuts the fan off automatically. Manual on/off fan control is possible.