The induction force that moves the air in a room or building in case of natural ventilation is due to _______:

The volume of air required for proper ventilation is determined by:

Ventilation is a process of moving air from one space to another entirely separate space and is a matter of ______:

It is recommended that an air exchange rate of _______ per person be allowed for extremely crowded spaces:

More corrosion takes place at ______ places of the equipment with iron parts in air conditioner:

A closed flue (stack) or chimney will induce a draft or draw air:

Air leakage due to Temperature difference or thermal effect is usually referred to as stack or chimney effect:

The area of the air intakes should at all times be ______ that of the combined airshaft area of all ventilators