why install fire and smoke damper

Any suggestions on how to rid a car-specifically the passenger leather seat- of smoke smell. My car was involved in a fire, my entire passenger side was torched and the interior of the passenger door melted. The body has been fixed, but there is still a strong smoke smell. I have had it detailed...

House is pretty much gutted. Need to get smoke smell out of my running watch, book bag, and heart rate monitor. What's the best way to do that? Thanks! Rob

Hi. One of the smartest things I did in my addition / remodel project was to install hardwired, interconnected smoke / CO detectors throughout the house. One of the dumbest things I did was put one in my kitchen. Naturally it goes off anytime the oven is used. If I move the kitchen (1st...

If we want to install Fire Damper in supply duct or in return duct.... For which duct we have to design ?...... We know it has to be install in both the ducts.... But in some cases we have to install one fier damper that is in supply or reurn duct?...... If have any UL555 & ASHRAE BACK...

In hvac clean room fire damper will be installed in supply duct or in return duct?.