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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

Sound Intensity
Sound intensity's measured in Decibels (dB). An logarithmic scale where an increase of 10 dB gives an apparent doubling of loudness...more
Part L1B
Conservation of fuel and power in Existing Dwellings

Manchester - Ventilation Commissioning Certificates - 0161 403 0129
The counties covered by this office are:
Lancashire, Cheshire, Greater Manchester, Merseyside, Isle of Man,
Phone Number: 0161 403 0129 Email: manchester@e2consultants.co.uk
Our other services include:
Ventilation Commissioning Certificates can also be known as:
Part F Ventilation Certificate, Part F Fan Testing, Ventilation Commissioning Certificate, Air Flow Rate Testing, Ventilation Testing Equipment, Duct Testing, Part F Testing, Part F Ventilation Testing,


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