| THI | WCI | ICL | ACI | Level | Assignment | |||
| Range | Range | Human body feeling | Range | Clothing | Range | Air freshness | ||
| <40 | >1000 | Extremely cold and extremely uncomfortable | >2.5 | Thick sweater plus down jacket | <0.29 | Not fresh | E | 1 |
| 40 - 45 | 1000 - 800 | Cold and uncomfortable | 1.8 - 2.5 | Thick sweater and cotton coat | 0.49 - 0.3 | General | D | 3 |
| 45 - 55 | 800 - 600 | Relatively cold and uncomfortable | 1.5 - 1.8 | Sweater plus coat | 0.69 - 0.5 | Relatively fresh | C | 5 |
| 55 - 60 | 600 - 300 | Cool and comfortable | 1.3 - 1.5 | Sweater plus thin coat | 1.0 - 0.7 | Fresh | B | 7 |
| 60 - 65 | 300 - 200 | Cool and very comfortable | 0.7 - 1.3 | Shirts and casual clothes | >1.0 | Very fresh | A | 9 |
| 65 - 70 | 200 - 50 | Warm and comfortable | 0.5 - 0.7 | Long sleeve shirts | 1.0 - 0.7 | Fresh | B | 7 |
| 70 - 75 | 50 - 0 | Hot and uncomfortable | 0.3 - 0.5 | Short sleeve shirts | 0.69 - 0.5 | Relatively fresh | C | 5 |
| 75 - 80 | 0 - −50 | Stuffy and uncomfortable | 0.1 - 0.3 | Short-sleeved summer dress | 0.49 - 0.3 | General | D | 3 |
| >80 | <-50 | Extremely stuffy and extremely uncomfortable | >2.5 | T-shirts and shorts | <0.29 | Not fresh | E | 1 |