Page 136 - GRIHA Manual Volume IV - Introduction to National Rating System
P. 136
Building planning and construction 127
Non-air-conditioned areas
a. Segregation
i. Specific area in the building should be designated as smoking zone. It should be ensured
that tobacco smoking is done in no other area within the building premises other than
the designated areas.
ii. The internal space should be planned such that the designated smoking zone is located
on the building periphery.
iii. Smoking zone should be segregated from the non-smoking areas by full height
impermeable partitions and doors equipped with automatic closing mechanisms.
iv. Appropriate signage with legible letter size should be posted outside designated
smoking zones informing that the area may contain environmental tobacco smoke.
b. Exhaust system
i. The contaminated air from the smoking zone should be exhausted directly to the
outdoors. It should be ensured that there is no recirculation of this air contaminated
with tobacco smoke, to the non-smoking zones of the building.
c. Dilution
i. If the smoking zone is mechanically ventilated, it should have an air circulation rate of
not less than 30 air changes per hour.
ii. The smoking zone should be ventilated properly with appropriate location of the air
inlets and outlets.
Standards for designing spaces containing environmental tobacco smoke
National Building Code of India 2005: Part 8: Building Services- Section 3 Air Conditioning, Heating, and
Mechanical Ventilation
Outdoor air requirements for ventilation of air conditioned areas and commercial facilities
requirement (l/s/
Application Estimated maximum Outdoor air
occupancy
person)
Persons/100m 2
Normally supplied by transfer air, local mechanical
Smoking lounge 70 30* exhaust, exhaust with no re-circulation
recommended
*30 l/s/person = 63.6 cfm (cubic feet per minute)/person
ASHRAE Standard 62.1-2007 Ventilation for Acceptable Indoor Air Quality
Building containing both smoking and non-smoking areas should meet with the requirements of section 5.18 (5.18.1 to
5.18.8) of ASHRAE Standard 62.1-2007 Ventilation for Acceptable Indoor Air Quality.
Non-air-conditioned areas
a. Segregation
i. Specific area in the building should be designated as smoking zone. It should be ensured
that tobacco smoking is done in no other area within the building premises other than
the designated areas.
ii. The internal space should be planned such that the designated smoking zone is located
on the building periphery.
iii. Smoking zone should be segregated from the non-smoking areas by full height
impermeable partitions and doors equipped with automatic closing mechanisms.
iv. Appropriate signage with legible letter size should be posted outside designated
smoking zones informing that the area may contain environmental tobacco smoke.
b. Exhaust system
i. The contaminated air from the smoking zone should be exhausted directly to the
outdoors. It should be ensured that there is no recirculation of this air contaminated
with tobacco smoke, to the non-smoking zones of the building.
c. Dilution
i. If the smoking zone is mechanically ventilated, it should have an air circulation rate of
not less than 30 air changes per hour.
ii. The smoking zone should be ventilated properly with appropriate location of the air
inlets and outlets.
Standards for designing spaces containing environmental tobacco smoke
National Building Code of India 2005: Part 8: Building Services- Section 3 Air Conditioning, Heating, and
Mechanical Ventilation
Outdoor air requirements for ventilation of air conditioned areas and commercial facilities
requirement (l/s/
Application Estimated maximum Outdoor air
occupancy
person)
Persons/100m 2
Normally supplied by transfer air, local mechanical
Smoking lounge 70 30* exhaust, exhaust with no re-circulation
recommended
*30 l/s/person = 63.6 cfm (cubic feet per minute)/person
ASHRAE Standard 62.1-2007 Ventilation for Acceptable Indoor Air Quality
Building containing both smoking and non-smoking areas should meet with the requirements of section 5.18 (5.18.1 to
5.18.8) of ASHRAE Standard 62.1-2007 Ventilation for Acceptable Indoor Air Quality.
