Ventilation is one of the most important engineering techniques for controlling the quality of air in an environment. The object of providing ventilation in buildings is to provide conditions under which people can live in comfort and work safely and efficiently. Ventilation can be divided into two types: comfort and hazard control. Comfort ventilation is part of the heating, ventilating, and air-conditioning (HVAC) systems built to control temperature, humidity, and odours whereas hazard control involves the use of ventilation to control exposure and prevent the accumulation of hazardous/flammable vapors.

The objectives of this study are as follows:

  • Ventilation is the mechanical system in a building that brings in "fresh" outdoor air and removes the "contaminated" indoor air;
  • In a workplace, ventilation is used to control exposure to airborne contaminants. It is commonly used to remove contaminants such as fumes, dusts, and vapours, in order to provide a healthy and safe working environment;
  • Industrial systems are designed to move out (exhaust) and bring in (intake) a specific amount of air at a specific speed (velocity), which results in the removal of undesirable contaminants;
  • Removes dampness of floor;
  • Provides healthy atmosphere to workers;
  • Removes humid conditions;
  • Increases the life of building.