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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

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
Part L2A
Conservation of fuel and power in new builds other than dwellings

Sheffield - DEC - 0114 368 0192
The counties covered by this office are:
Derbyshire, Lincolnshire, South Yorkshire, Nottinghamshire,
Phone Number: 0114 368 0192 Email: sheffield@e2consultants.co.uk
Our other services include:
DEC can also be known as:
Display Energy Certificate,


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