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Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...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 L1B
Conservation of fuel and power in Existing Dwellings

Our other services include:
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Part F Ventilation Certificates can also be known as:
Duct Testing, Part F Ventilation Certificate, Part F Ventilation Testing, Part F Fan Testing, Ventilation Testing Equipment, Part F Testing, Air Flow Rate Testing, Ventilation Commissioning Certificate,
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Company No. 06728970
In County S
Ventilation Testing & Compliance in Shropshire, Ventilation Testing & Compliance in Somerset, Ventilation Testing & Compliance in South Yorkshire, Ventilation Testing & Compliance in Staffordshire, Ventilation Testing & Compliance in Stirlingshire, Ventilation Testing & Compliance in Strathclyde, Ventilation Testing & Compliance in Suffolk, Ventilation Testing & Compliance in Surrey, Ventilation Testing & Compliance in Swansea County,