It's a breeze.
Lievens
R
R
Dayton Electric Mfg. Co. of Niles, Ill., USA.
Hill
D L
DL
D000389:Air Conditioning / Q000191:economics / Q000295:instrumentation*; D004526:Efficiency; D004867:Equipment Design; D018882:Heat Stress Disorders / Q000517:prevention & control*; D006358:Hot Temperature / Q000009:adverse effects; D006801:Humans; D006813:Humidity / Q000009:adverse effects; D016273:Occupational Exposure / Q000517:prevention & control*; D014691:Ventilation / Q000191:economics / Q000295:instrumentation*