🧰 Features to Look for in Fire Damper Products 
UL 555 or BS 476 certification 
 
Tested for 2–4 hours of fire resistance 
 
Corrosion-resistant construction (galvanized or stainless steel) 
 
Fusible link or motor actuator system 
 
Easy installation and maintenance access 
 
Fire rating labels and third-party quality verification 
 
https://airmasteroman.com/prod....uct/motorized-fire-d



 
                        

 
					 
						 
                                     
         
             
             
             
             
             
             
             
             
             
             
             
             
             
             
             
            