To feel comfoable and cool in a factory the conrrected effective temperature ( in degree Farenheit) should be -
Comfo zones: In deg C of corrected effective temperature Pleasant and cool 20 Comfoable and cool 20-25 (69-76F) Comfoable 25- 27 (77-80F) Hot and uncomfoable 27-28 Extremely hot 28+ Intolerably hot 30+. Park's Textbook of Preventive and Social Medicine, 25th Edition, Pg 792
Environment and health
Less tha 69
Between 69 and 76
Between 77 and 80
Between 81 and 82
Between 69 and 76