Is 45 dB too loud to sleep?
Is 45 dB too loud to sleep? The day–evening–night noise level (LDEN) is a European standard to express noise levels over an entire day. Similarly, LNIGHT is the noise indicator for the night. The World Health Organization (WHO) recommended reducing noise levels to 53 dB and 45 dB for LDEN and LNIGHT noise exposures, respectively.
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