| Natural Ventilation | Mechanical Ventilation | ||||
| Type of Ventilation | Frequency (n) | Percentage of frequency (%) | Type of Ventilation | Frequency (n) | Percentage of frequency (%) |
| Glaze Sliding | 63 | 31.5 | Fan only | 87 | 43.5 |
| Glass louvers | 91 | 45.5 | Air condition only | 40 | 20.0 |
| Wooden louvers | 11 | 5.5 | Fan & Air condition | 73 | 36.5 |
| Open air window | 35 | 17.5 |
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|
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| Total | 200 | 100.0 | Total | 200 | 100.0 |