Occupational diseases are prevented by 3 measures
1.Medical measures
2.Engineering measures
3.Legislation
Engineering measures mnemonic
HOt DESI Madam ViDeshi Pet
HO=HOuse keeping(good house keeping)
DESI=DESIgn of building
E=Enclosure
S=Substitution
I= Isolation
M= Mechanization
V=Ventilation (local , general)
D=Dust
P=Protective devices
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