

BEAM P
LUS
I
NTERIORS
C
OMMERCIAL
, R
ETAIL
A
ND
I
NSTITUTIONAL
I
NDOOR
E
NVIRONMENTAL
Q
UALITY
(IEQ)
IEQ 4 P
RE
-
OCCUPANCY
F
LUSH
O
UT
Copyright © BEAM Society Limited. All rights reserved. Page 107
duct coverings installed shall be removed. The filtration media shall
be replaced with new media unless the system is configured such that
filters filter only the outside air. The new filters installed prior to the
start of flush-out must be MERV 13 or better.
Depending upon the season, outside air can be cold or humid.
Appropriate internal temperature and relative humidity shall be
maintained during flush-out procedure.