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Place Ventilation (in cubic
metres of air per hour)
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Change hooks or lockers 18 m3/h per square
rooms for street clothes metre of the room’s
or unsoiled work surface area.
clothes
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hooks or lockers the greater of:
for damp work 36 m3/h per square
clothes (drying metre of the room’s
facilities) surface area, and
12 m3/h per locker.
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Toilets and the greater of:
urinals - 36 m3/h per square
metre of the room’s
surface area, and
- 45 m3/h per toilet
or urinal, but not less
than 350 m3/h.
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Showers the greater of:
- 36 m3/h per square
metre of the room’s
surface area, and
- 90 m3/h per shower
head, but not less than
350 m3/h.
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