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:
“half-way up the hill, I see the Past
Lying beneath me with its sounds and sights,—
A city in the twilight dim and vast,
With smoking roofs, soft bells, and gleaming lights,—
And hear above me on the autumnal blast
The cataract of Death far thundering from the heights.”
—Henry Wadsworth Longfellow (1809–1882)