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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
Commercial_Air_Testing is sometimes referred to as Commercial AIR pressure tests, Commercial AIR tightness tests, Commercial AIR tests, Commercial AIR pressure testing, Commercial AIR tightness testing.
For further Commercial-Air-Testing information for your area, be sure to check out Air-Testing-.co.uk.
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