Liam & Daan 303184, Руководство пользователя

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15
Important Safety Information
Sound
Level
in dB
Effect
Whispering 30 harmless
normal conver-
sation, sewing
machine
55-60
harmless but may
impair concentration
Lawn mower 70 mostly harmless
Hand grinder,
mixer
85-90
hearing may be
damaged above
85 dB
Circular saw 100
dangerous if ex-
posed continuously.
Do not to expose
yourself for more
than 15 minutes to
this level without
hearing protection
Chainsaw 110
dangerous if ex-
posed continuously
Rock concert, jet
engine starting 110-
130
Pain threshold
above approximate-
ly 120 dB