Draught | 20 (446) | 22 (675) | 22 (805) | 22 (384) | NS |
Room temperature too high | 17 (369) | 18 (543) | 17 (584) | 17 (272) | NS |
Varying room temperature | 18 (382) | 16 (490) | 16 (522) | 15 (236) | NS |
Room temperature too low | 15 (314) | 14 (410) | 13 (416) | 11 (167) | **1 and 4 |
*2 and 4 |
Stuffy air | 36 (787) | 36 (1148) | 33 (1179) | 30 (524) | ***2 and 4 |
**1 and 4 |
**2 and 3 |
Dry air | 35 (757) | 37 (1145) | 34 (1209) | 35 (590) | NS |
Unpleasant odours | 16 (351) | 17 (523) | 17 (592) | 17 (291) | NS |
Static electricity | 8 (168) | 8 (257) | 8 (267) | 6 (101) | *2 and 4 |
Environmental tobacco smoke | 3 (73) | 3 (89) | 4 (140) | 4 (68) | NS |
Noise | 16 (342) | 17 (530) | 18 (629) | 19 (323) | *1 and 4 |
Dim light or glare/reflections | 12 (262) | 15 (450) | 15 (530) | 13 (223) | **1and 3 |
*1 and 2 |
Dust or dirt | 24 (519) | 26 (807) | 26 (948) | 25 (429) | NS |