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Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more
Environmental Noise Levels
The max exposure time at 85 dBA is 8 hours, at 110 dBA it's just 1 min 29 seconds. If exposed, limit the time and wear hearing protection...more
Part L1B
Conservation of fuel and power in Existing Dwellings
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In Area D
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