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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

Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more
Part F
Means of Ventilation

Liss - Ventilation Testing Equipment - 0239 366 0106
The office that covers this area is: Portsmouth
Phone Number: 0239 366 0106 Email: liss@e2consultants.co.uk
Our other services include:
Ventilation Testing Equipment can also be known as:
Part F Testing, Part F Ventilation Certificate, Air Flow Rate Testing, Ventilation Commissioning Certificate, Part F Ventilation Testing, Duct Testing, Part F Fan Testing,


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Company No. 06728970