PET/˚C | Thermal sensation | Psychological stress response |
≤4 | Very cold | Extreme cold stress |
4 - 8 | Cold | Strong cold stress |
8 - 13 | A bit cold | Cold stress |
13 - 18 | Comfortable | Mild cold stress |
18 - 23 | A bit warm | No heat stress |
23 - 29 | Warm | Mild heat stress |
29 - 35 | Hot | Moderate heat stress |
35 - 41 | A bit hot | Strong heat stress |
≥41 | Very hot | Extreme heat stress |