Construction of Indoor Thermal Comfort Environmental Monitoring System Based on the IoT Architecture

Table 2

Impact of SET on the human body.

SET/°C	Thermal feeling	Discomfort	Human body temperature regulation	Health state
40	Very hot	Intolerable	Water cannot be evaporated from the skin	Risk of heat stroke
35~40	Hot	Very uncomfortable
35		Uncomfortable
30~35	Warm	Slightly uncomfortable	Sweating increases and blood vessels expand
30
25~30	Slightly warm
25			No obvious sweating
20~25	Neutral	Comfortable		Normal health state
20	Slightly cool		Blood vessels retract
15~20	Slightly cold	Slightly uncomfortable
15			Change behaviors	Body metabolism is weakened
10~15	Cold		Start chilling
10	Very cold	Uncomfortable