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Thread: Toilet extract info
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22-02-2023, 05:06 PM #1
Toilet extract info
Afternoon all,
This is not a/c but its the closest option for what I need.
Can/Does anyone know what the minimum airflow is for a office toilet extract?
I was asked to look at the extract as it wasn't working and I found 1 fan pulling 0.41m/s and the other pulling 1.71m/s we replaced the fan and now both are pulling 1.71m/s
The fan unit is 25mtrs from the toilet extract vents I'm just after some information on if its okay or if it's below minimum as if so they want a booster fan installed in the toilet.
Any information or guidance is much appreciated
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22-02-2023, 10:01 PM #2
Re: Toilet extract info
It's not based normally for commercial systems on m3/s but on room air changes. Domestic extract rates are given in Part F Building Regs
Heres a link to view the latest regs https://www.gov.wales/building-regul...-f-ventilation