Baffles
Baffles means an apparatus comprised of obstructions for checking or deflecting the flow of gases. Baffles are installed in a quench tower to remove droplets of water and particles from the rising vapors by providing a point of impact. Baffles may be installed either inside or on top of quench towers and are typically constructed of treated wood, steel, or plastic.
Source
40 CFR § 63.7352
Scoping language
Terms used in this subpart are defined in the Clean Air Act (CAA), in 63.2, and in this section as follows: