The backflow damper prevents the ingress of cold or warm air and wind from entering through the ventilation duct. The 4 inch Backdraft damper is made out of a Galvanized steel, the flap leaves are ...

Backdrafts in your home can potentially expose you to carbon monoxide poisoning. Here's how to protect yourself.

Greenheck’s EM-30 Backdraft Damper series was recently AMCA Licensed for Air Leakage and Air Performance. Designed to open by air pressure differential and close by gravity, backdraft dampers can be ...

Q. Our home has a combination microwave/range hood that discharges directly through the sidewall of our home. The wall jack has a weather-head with a spring closure for the backdraft damper. The ...

SPEEDY EXHAUST & BACKFLOW-PROOF SHUTTER- Our exhaust extractor fan with thin and light backdraft damper sleeve, which can expand the exhaust opening angle for speedy elimination of turbid and moist ...

Standards and codes are established with one primary purpose: to protect human life and property. Many of these guidelines were created as reactions to past disasters, serving as preventive measures ...

Effikal LLC, of Orion, Mich., in cooperation with the U.S. Consumer Product Safety Commission, has announced a voluntary recall of its Automatic Gas Vent Dampers. The automatic gas vent damper could ...