Table 2 Summary of the indoor environmental characteristics in the investigated coffee shops.
Shop A (N = 20) | Shop B (N = 44) | Shop C (N = 95) | Shop D (N = 83) | |||||
|---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | n | % | |
Indoor activitiesa | ||||||||
Cooking | 6 | 30.0% | 1 | 2.3% | 10 | 10.5% | 18 | 21.7% |
Roasting beans | 0 | 0.0% | 11 | 25.0% | 2 | 2.1% | 9 | 10.8% |
Cleaning | 0 | 0.0% | 3 | 6.8% | 0 | 0.0% | 7 | 8.4% |
Smoking | 0 | 0.0% | 0 | 0.0% | 30 | 31.6% | 0 | 0.0% |
Others | 0 | 0.0% | 3 | 6.8% | 0 | 0.0% | 1 | 1.2% |
Ventilation statusa | ||||||||
AC on/Window or door open | 0 | 0.0% | 44 | 100.0% | 0 | 0.0% | 0 | 0.0% |
AC on/window or door closed | 20 | 100.0% | 0 | 0.0% | 86 | 90.5% | 83 | 100.0% |
AC off/window or door closed | 0 | 0.0% | 0 | 0.0% | 9 | 9.5% | 0 | 0.0% |
Locating on the main traffic street | Yes | No | No | No | ||||
Occupant density (person/100 m2) | 8–13b | 11 ± 1c | 7–33b | 17 ± 6c | 3–20b | 10 ± 3c | 9–66b | 28 ± 3c |
