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BEAM P
LUS
I
NTERIORS
C
OMMERCIAL
, R
ETAIL
A
ND
I
NSTITUTIONAL
I
NDOOR
E
NVIRONMENTAL
Q
UALITY
(IEQ)
IEQ 5 T
ENANT
E
XHAUST
Copyright © BEAM Society Limited. All rights reserved. Page 108
IEQ 5 T
ENANT
E
XHAUST
E
XCLUSION
None.
O
BJECTIVE
Prevent exposure of occupants to concentrated indoor sources of
pollutants.
C
REDIT ATTAINABLE
1
C
REDIT REQUIREMENT
1 credit for the provision of independent exhaust system for all
photocopy / printing rooms and locations where significant indoor
pollution sources are generated.
A
SSESSMENT
Criteria
The Applicant shall provide independent exhaust to all photocopy /
printing rooms and locations with significant indoor pollution sources
with sufficient exhaust rate. On the other hand, the Applicant shall
ensure the discharge of the exhaust louvres shall not face or at a
minimum distance of 7m to other intake location points or louvres.
Documentation
Credit shall be achieved when the Applicant provides the
documentation stated below, to demonstrate criteria compliance:
i.
drawings, with location layout, sections, elevations for each
rooms, including E&M layout drawings, and associated
ductwork layouts;
ii.
fan schedules;
iii.
calculation that exhaust rate of 2.5 litres per second/sqm is
achieved;
iv.
commissioning records;
v.
record photographs;
NOTE: Record photographs shall be required during the progress of
the works for installations and systems that will be subsequently
covered up or concealed;
B
ACKGROUND
Concentrated airborne contaminants are best removed close to their
sources. The provision of independent exhaust, segregated from
general ventilation, is an appropriate strategy.
Photocopiers and printers emit contaminants such as ozone and
particulates and should be housed in dedicated rooms that are not
normally occupied.
ANSI/ASHRAE 62.1-2010
[1] designates the air quality in copy and
print rooms as air class 2 and it is therefore inappropriate to re-
circulate with occupied areas of the building. ANSI/ASHRAE 62.1-
2010 recommends an exhaust flow rate of 2.5 l/s/m
2
.
1
ANSI/ASHRAE 62.1-2010. Ventilation for Acceptable Indoor Air Quality. American Society of Heating, Refrigerating
and Air-Conditioning Engineers, Inc.