air change time

[AIVC, Air infiltration and ventilation glossary, 1992]:This is the time for all of the air in a room to be changed and is equal to twice the room mean age.(see air change efficiency; coefficient of air change performance; local air Continue reading →

air conditioner

[EN 14511-1:2022, 3.1]:device capable of cooling or heating, or both, indoor air, using a vapour compression cycle driven by an electric compressor, including air conditioners that provide additional functionalities such as dehumidification, air purification, ventilation or supplemental air heating by Continue reading →