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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

How loud is too loud?
Noise above 85 dBA over time will cause hearing loss. In general, the louder the noise, the less time required before hearing loss...more
Mayford - Duct Testing - 020 3390 0301
The office that covers this area is: London
Phone Number: 020 3390 0301 Email: mayford@e2consultants.co.uk
Our other services include:
Duct Testing can also be known as:
Ventilation Commissioning Certificate, Part F Ventilation Certificate, Part F Ventilation Testing, Part F Testing, Part F Fan Testing, Air Flow Rate Testing, Ventilation Testing Equipment,


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Company No. 06728970