Question

the indicator of vatiated air in the room

Answer 1

Answer:

The following are the objects of ventilation:

The following are the objects of ventilation:(i) To remove the used air from the buildings,

The following are the objects of ventilation:(i) To remove the used air from the buildings,(ii) To supply oxygen for humans in the buildings,

The following are the objects of ventilation:(i) To remove the used air from the buildings,(ii) To supply oxygen for humans in the buildings,(iii) To remove the excessive moisture