B)REQUIREMENT FOR MECHANICAL VENTILATION OR AIR-CONDITIONING
- Internal rooms
 - Large, closely, populated rooms where distribution of natural ventilation is inadequate.
 - Where natural ventilation cannot be provided because of external air pollution or noise.
 - Extract ventilation (fumes or smell from cooking etc).
 - Tall building.
 









Topic ni ada kuar masa kuiz. Mana tau kot nak kuar lagi ke.
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