About Indoor Air Quality

Children aged 1- 3 years may breathe 20 - 30 times per minute, whereas older children and adults can breathe 12 - 20 times per minute. As it is continuous process, we need to ensure we are living in a space with good indoor air quality.

Air Conditioning

Air Conditioning is the process of controlling Temperature, Relative humidity and Purity of air in indoor spaces.

Comfort temperature of human being is 24  +/-  2 Degree centigrade.

Humidity is a measure of the amount of water vapor in the air. Relative humidity is a percentage that represents the amount of water vapor in the air at a given temperature compared to the max possible water vapor amount at that same temperature. Relative Humidity for human comfort shall be in between 30 to 60%

Purity of air : Filters in AC units, trap and hold many types of particulates and contaminants that could affect your health and comfort, including dust, dirt, pollen, mold, mold spores, fibers, lint, hair, bacteria and micro-organism.

Ventilation

Ventilation is the process by which ‘Fresh’ air (normally outdoor air) is intentionally provided to a space and the stale air is removed from that space to maintain indoor air quality.

Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants, it can be done via natural ventilation, mechanical ventilation or mixed ventilation.

Natural Ventilation : Inducing air into a space by means of planned openings such as doors, windows, louvers.

Mechanical Ventilation : Inducing air into a space by means of supply fan and removing air by means of extract fans.

Mixed Ventilation : It is a combination of both mechanical and natural ventilation process.

Can we maintain Indoor Air Quality, while AC Unit is Switched OFF?

YES

Air Conditioning is the process of controlling Temperature, Relative humidity and Purity of air in indoor spaces. It has hardly any role to play in ventilation

 

Whereas Ventilation is the process by which ‘Fresh’ air (normally outdoor air) is intentionally provided to a space and stale air is removed.

 

Even if AC unit is switched OFF, we can maintain indoor air quality by running fresh air & extract air fans of your Villa or Town house.

How do we know when Indoor Air Quality is  Bad?

1. If you smell Unpleasant odors, when your back to home after few hours of being outdoor, it happens as a result of stagnant air.

2. If you notice ordinary smells that linger longer than they should, this is a sign that your home doesn’t have proper circulation. If the odors from last night’s dinner are still there the next day, there’s a good chance that pollutants are hanging out as well.

What is Formaldehyde?

Formaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.

The general public may be exposed to formaldehyde by breathing contaminated air from sources such as pressed-wood products, tobacco smoke, and automobile tailpipe emissions. Another potential source of exposure to formaldehyde is the use of unvented fuel-burning appliances, such as gas stoves, wood-burning stoves, and kerosene heaters.

The U.S. Environmental Protection Agency recommends the use of “exterior-grade” pressed-wood products to limit formaldehyde exposure in the home. Formaldehyde levels in homes and work settings can also be reduced by ensuring adequate ventilation, moderate temperatures, and reduced humidity levels through the use of air conditioners and dehumidifiers.