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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

How loud is too loud?
Noise above 85 dBA over time will cause hearing loss. In general, the louder the noise, the less time required before hearing loss...more
Ruthin - Ventilation Commissioning Certificate - 01978 633 079
The office that covers this area is: Wrexham
Phone Number: 01978 633 079 Email: ruthin@e2consultants.co.uk
Our other services include:
Ventilation Commissioning Certificate can also be known as:
Part F Ventilation Testing, Duct Testing, Part F Fan Testing, Part F Testing, Air Flow Rate Testing, Part F Ventilation Certificate, Ventilation Testing Equipment,


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