GREEN TIPS
Further steps on indoor environmental quality management
During all kinds of work activities
• Encourage the neighbours to cover the main door with plastic sheets or seal the door gaps with
wet towels
• Agree with neighbours on the use of
at mutually acceptable hours
• Use absorbents and filters
• Fit vacuum cleaners to grinding, polishing or wood cutting machines; attach a vacuum cleaner to the
grinding machine for effective dust control
Figure 135 Use of vaccum
cleaner to reduce dust impact
(Source: Environmental
Protection Department)
• Carry out building flush-out prior to occupancy
TECHNICAL NOTE
Building flush-out
Prior to occupancy of newly constructed and renovated buildings, flush-out is an important process used to
remove indoor air pollutants, such as VOC- and particle-emitting construction materials, furnishings, interior
finishes and cleaning agents, from a building by taking in outside air through the building HVAC system.
Procedures for building flush-out may vary from case to case. No matter how similar the buildings are,
parameters such as duration, required air volume, maintained temperature and relative humidity are
different.
It would be better for tenants and developers to schedule flush-out as part of the construction programme
and to carry out an
measurement to verify its performance.
Read more at:
Centre For Sustainable Building Research. Minnesota Sustainable Housing Initiative. (2011).
Knowledge base – flush out. Retrieved 8 April 2013, from
6
During renovation or interior decoration
6.4
Indoor environmental quality (IEQ) management
Figure 136 Grinding machine attached to a vacuum cleaner
(Source: Environmental Protection Department)
156 Hong Kong Green Shop Guide
