Etymotic Research ER-20 User Manual

Noise
Reduction
Rating
(WHEN USED AS DIRECTED)
THE RANGE OF NOISE REDUCTION RATINGS
FOR EXISTING HEARING PROTECTORS
IS APPROXIMATELY 0 TO 30
(HIGHER NUMBERS DENOTE GREATER EFFECTIVENESS)
ETYMOTIC RESEARCH, INC.
ELK GROVE VILLAGE, IL 60007
Federal law prohibits
EPA
removal of this label
prior to purchase.
NRR: The government-required labeling of
this product is NRR = 12 dB, but actual clinical
measurements of properly inserted ER-20s
indicate that these earplugs provide almost equal
sound reduction (20 dB) across the range of hearing.
Safe Exposure
(hours per week)
Sound Level Exposure
(in dB SPL) Type
85 Restaurant
94 Subway
97 Live band
100 Sports event
112 Rock concert
115 Siren
WARNING:
DON'T EXPOSE YOUR EARS BEYOND THE SAFE TIMES SHOWN ABOVE.
EARPLUGS MUST BE INSERTED PROPERLY TO BE EFFECTIVE.
LOT #
12
DECIBELS
ER-20
LABEL REQUIRED BY
U.S. E.P.A. REGULATION
40 CFR Part 211, Subpart B.
Open Using
Ears ER-20s
40 hrs SAFE
5 hrs SAFE
2.5 hrs 40 hrs
1.25 hrs 20 hrs
5 mins 1.25 hrs
2.5 mins 36 mins
E T Y M O T I C R E S E A R C H ,
• Music and voices
are clear, not muffled
• Professional quality
Designed by the leaders in
custom hearing protection
I N C .
1 Pair