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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 Absorption
The loss of sound energy when sound waves come into contact with an absorbent material such as ceilings, walls, floors and other objects...more
Part L2B
Conservation of fuel and power

Bristol - DECs - 0117 212 0189
The office that covers this area is: Cardiff
Phone Number: 0117 212 0189 Email: bristol@e2consultants.co.uk
Our other services include:
DECs can also be known as:
DEC, Display Energy Certificate,


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