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The Decibel Scale
Gives an approx of human perception of loudness. This is because the human ear has a logarithmic response to changes in sound level...more

Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more
Part E
Resistance of the Passage of Sound

Bromley - Part F Fan Testing - 020 3390 0301
The office that covers this area is: London
Phone Number: 020 3390 0301 Email: bromley@e2consultants.co.uk
Our other services include:
Part F Fan Testing can also be known as:
Air Flow Rate Testing, Part F Ventilation Certificate, Ventilation Testing Equipment, Part F Testing, Ventilation Commissioning Certificate, Duct Testing, Part F Ventilation Testing,


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