Air treatment value emphasised.
Wright
Graham
G
Sanyo Air Conditioners.
D000395:Air Pollutants, Occupational / Q000302:isolation & purification; D016902:Air Pollution, Indoor; D003428:Cross Infection / Q000517:prevention & control*; D005374:Filtration / Q000295:instrumentation*; D006779:Hospitals, Public; D006801:Humans; D013222:State Medicine; D006113:United Kingdom
D000395:Air Pollutants, Occupational