Jun 6, 2019 #1 robyengIT Mechanical Dec 20, 2013 894 0 0 IT thread769-427762 (early 1969) Air pollution unit : the quantity of bad smell that, at a distance of 1 meter, kills a canary in 15 seconds
thread769-427762 (early 1969) Air pollution unit : the quantity of bad smell that, at a distance of 1 meter, kills a canary in 15 seconds