Smoking and Ventilation
ASHRAE standard 62 states that air removed from an area with environmental tobacco smoke shall not be recirculated into ETS-free air. A space with ETS requires more ventilation to achieve similar perceived air quality to that of a non-smoking environment.
The amount of ventilation in an ETS area is equal to the amount of ETS-free area plus the amount V, where:
V = DSD × VA × A/60E
- V = recommended extra flow rate in CFM (L/s)
- DSD = design smoking density (estimated number of cigarettes smoked per hour per unit area)
- VA = volume of ventilation air per cigarette for the room being designed (ft3/cig]
- E = contaminant removal effectiveness
Read more about this topic: Ventilation (architecture)
Famous quotes containing the word smoking:
“As an example to others, and not that I care for moderation myself, it has always been my rule never to smoke when asleep, and never to refrain from smoking when awake.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)