Table 1.

Ranges and Accuracy of Experimental Instruments.

Instrument name	Type	Parameters	Measuring range	Accuracy
Hygrothermograph	Testo174H	Air temperature Relative humidity	-40℃-70℃ 0–100%RH	± 0.5℃  ± 3%RH
Omnidirectional anemometer	JT2020	Air velocity	0-5 m/s	± (0.03 m/s + 2%)
Black bulb thermometer	JT2011	Globe temperature	0∼ + 120 °C	± 0.5 °C
Skin temperature mater	iButton DS1923	Skin temperature	-20℃-85℃	± 0.1 °C
Heart rate meter	Ezon-C009pro	Heart rate	40-220 bpm	± 5%