National System of Garage Ventilation, Inc. Vehicle Exhaust Removal Systems Register to get more information Home Welcome to National System of Garage Ventilation. Our commitment... in this field. At-the-source capture of exhaust fumes is the most cost efficient and health-wise way to remove harmful carbon monoxide, diesel, welding fumes, carcinogens, and wood dust... of your mechanics by creating a healthier working environment. Since 1946 National System has manufactured carbon monoxide, diesel, and welding fume removal systems for auto...

to be exhausted (i.e. gasoline, propane, diesel, etc.) Maximum horsepower of apparatus Condition of apparatus (i.e. tune-up/idle, pump testing, full-load dyno, etc.) Exhaust tailpipe size...Engineering Guide Home Engineering Guide Engineering Guide In designing a fume removal system, it is extremely important to determine the following: Type of apparatus...