Profile: Air Tech Engineers is a manufacturer of nitrogen gas generator, oxygen gas generator, ammonia cracker and air & gas dryers. Activated carbon filters are designed to be used for the removal of vapors that might be present within the air or gas flow. The activated carbon elements absorb vapors and bind them to the surface of the activated carbon grain molecules. The filter element filled with activated carbon is suitable for removing the oil vapors down to 0.003 ppm and are drained out by the auto drain trap or manual drain valve provided at the bottom of the activated carbon filter. Ammonia cracking unit generates combination of nitrogen and hydrogen which is used in heat treatment furnaces.