The effective temperature of'comfort zone' is
(77-80degF) (641-Park 20th)Comfort zones - may be defined at the range of effective temperatures over which the majority of adults feel comfortableComfort zones evaluated in India are as below:TypesCorrected Effective Temperature deg- CCorrected Effective Temperature0deg F1 Pleasant and cool20692 Comfortable and cool20-2569-763 Comfortable25-2777-804 Hot and uncomfortable27-2881-825 Extremely hot28+83+6 Intolerably hot30+86+ Predicated four hour sweat rate (P4SR)1 Comfort zone1-.3 litres2 Just tolerable3-4.5 litres3 Intolerable4.5+ litres
69 - 76 degF
77-80 F
83-85 F
86-90 F
Environment and Health