Today's homes are built tightly for energy efficency. But what’s good for heating and air-conditioning bills means unwanted and unhealthy pollutants stay trapped inside unless they are mechanically vented away.
Excess humidity, for example, can cause damaging and unhealthy mold growth. Other pollutants* include pollen and volatile organic compuonds (VOCs) which off-gas from building materials or exist in products we use every day such as cosmetics and cleaning chemicals.
Intermittent or “spot” ventilation focuses on removing contaminants from a speciﬁc area at a speciﬁc time, such as running a bath fan during a shower. Continuous, whole-house ventilation is becoming increasingly popular and continually removes contaminants generated in our homes every day.
Continuous ventilation—also known as whole-house ventilation—is being required to meet building codes, or green building standards such as LEED or ENERGY STAR® for Homes.
Our exclusive ULTRA Smart™ Control Technology enables these fans to maintain their powerful operation even at high static pressures, and supply the required air movement levels for whole-house ventilation while meeting the spot ventilation needs of a bathroom. Available in multi-speed versions, the continuous lower CFM levels of ULTRA™ Series Ventilation Fans can be adjusted to meet the speciﬁc needs of each home.
Since whole-house fans may run at all times, quiet operation is extremely important. The last thing that anybody wants is to be kept awake by a loud fan.
Choosing an ENERGY STAR® qualiﬁ ed fan is always a good idea, but it is even more important for whole-house fans that may run all the time. ULTRA™ Series Ventilation Fans with ULTRA Green™ DC Motor Technology meet ENERGY STAR® CFM-per-watt requirements and in some cases are nearly 10 times more efficient.