Swiftly he turned on blower fans.

The blower fan from the furnace kicked on.

"As soon as we touch that rubble there is going to be clouds of it - more than our little blower fan can handle."

The men rigged up the heavy-duty electric blower fan which would circulate the air in the shaft, while Nicholas prepared the chain-saw.

Beyond the wall they stood quietly together, waiting for the blower fan to clear the air.

Inside the air handler, the large metal cabinet connected to the furnace, is the blower fan.

The most common setup for air curtains is a downward-facing blower fan placed over an opening.

This small radiator, and the associated blower fan, is called the heater core, and serves to warm the cabin interior.

The condenser fan and the blower fan are usually powered by the same motor.

"My biggest challenge is that I'm left-handed, and power tools are set up so that the blower fans are generally on the right side," she said.