a calibrated fan, temporarily installed in an outside door, which de-pressurizes the home
a fan mounted into an exterior door frame
a large fan mounted in an expandable frame that is installed in an outside doorway to conduct the test
a large fan temporarily mounted in an exterior doorway
a large fan that fits tightly into an exterior doorway and depressurizes the space inside your home, which then causes air to flow in through the cracks and other openings
a powerful fan that mounts into the frame of an exterior door
a powerful, large fan that is temporarily mounted in a house door to measure the leakiness of the house and to help find the location of the leaks
a powerful tool that can lead a skilled auditor to all the major air leakage pathways in your house
a variable speed fan, mounted in a doorframe, used to pressurize and depressurize a house to measure air leakage
A large powerful variable-speed fan mounted in a doorway that blows air into (pressurizes) or sucks air out of (depressurizes) a building. It's used to test for air leakage.
A device used by energy auditors to pressurize a building to locate places of air leakage and energy loss.
A blower door is a device for testing the airtightness of a building. A blower door consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow. The combination of pressure and flow can be used to estimate the airtightness.
