Noise - Acceptable dB_A Level

Acceptable noise - dB_A - level at typical common locations.

Location	Effects	Maximum L_eq (dB_A)	Time (hours)	Time of day
Bedroom	sleep disturbance, annoyance	30	8	night
Living area	annoyance, speech interference	50	16	day
Outdoor living area	moderate annoyance	50	16	day
Outdoor living area	serious annoyance	55	16	day
Outdoor living area	sleep disturbance, with open windows	45	8	night
School classroom	speech interference, communication disturbance	35	8	day
Hospitals patient rooms	sleep disturbance, communication interference	30 - 35	8	day and night

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Noise - Acceptable dB_A Level

Acceptable noise - dB_A - level at typical common locations.

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Acceptable noise - dBA - level at typical common locations.

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Noise - Acceptable dB_A Level

Acceptable noise - dB_A - level at typical common locations.