No dust in the wind. (case books).

A Michigan diemaker had moot points meeting air-quality standards. Its sum of two units old bag-type dust collectors couldn't suction carburet of iron dust from the plant's air. thus the company replaced them with sum of two units Sternvent CYD3620 dust collectors, each designed for three-station grinding benches.
The collectors include a downdraft grating at each bench and a doghouse cowl for close capture of grinding dust. The of recent origin collectors -- with 20-hp cyclone -- exhaust to the atmosphere, require no shakers, and deposit