Glossary
What is a Wall-Mounted PIV?
A wall-mounted PIV unit is a mechanical ventilation system designed to improve indoor air...
What is a Whole House Retrofit (WHR)?
A Whole House Retrofit (WHR) is a systematic approach to upgrading all major energy-consuming...
What is a Y-Piece?
A Y-Piece is a duct component used in ventilation systems to divide airflow into...
What is Acoustic Attenuation?
Acoustic attenuation refers to the reduction in the intensity or energy of sound waves...
What is Adventitious Ventilation?
Adventitious ventilation refers to the uncontrolled ingress (or egress) of external air into (or...
What is Air Permeability?
Air permeability is a measure of how much air leaks through the building envelope...
What is Air Purification?
Air purification refers to the process of removing contaminants, such as dust, pollen, mould...
What is Airflow?
Airflow refers to the movement of air in a specific direction, driven by pressure...
What is Airtightness?
Airtightness refers to the extent to which a building’s envelope prevents uncontrolled air leakage...
What is Alternate-Flow Heat Recovery (AFHR) Ventilation?
Alternate Flow Heat Recovery Ventilation (AFHR) is an advanced mechanical ventilation system designed to...