Spirometry breathing test

"Inhalation of some dusts, gases, or other air contaminants in your workplace as well as some personal exposures, such as cigarette smoking, can harm your lungs. Spirometry testing (a type of pulmonary or lung function test) may identify breathing problems early, which may prevent more serious problems. Spirometry testing is required for some workers by OSHA standards." - p. 1"OSHA 3418311."Also available via the World Wide Web as an Acrobat .pdf file (344KB, 1 p.)