Etymotic Research ER-20 - User Manual

LOT #
Noise
Reduction
Rating
12
(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
removal of this label
prior to purchase.
LABEL REQUIRED BY
U.S. E.P.A. REGULATION
40 CFR Part 211, Subpart B.
ER-20
EPA
DECIBELS
Safe Exposure
(hours per week)
Sound Level Exposure Open Using
(in dB SPL) Type Ears ER-20s
85 Restaurant 40 hrs SAFE
94 Subway 5 hrs SAFE
97 Live band 2.5 hrs 40 hrs
100 Sports event 1.25 hrs 20 hrs
112 Rock concert 5 mins 1.25 hrs
115 Siren 2.5 mins 36 mins
WARNING:
DON'T EXPOSE YOUR EARS BEYOND THE SAFE TIMES SHOWN ABOVE.
EARPLUGS MUST BE INSERTED PROPERLY TO BE EFFECTIVE.
• Music and voices
are clear, not muffled
• Professional quality
Designed by the leaders in
custom hearing protection
1 Pair
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.
ETYMOTIC RESEARCH, INC.
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ER20-20k-03/04

Summary

Noise Reduction Rating

NRR Value and Explanation

Explains the 12 dB NRR and how ER-20s offer better sound reduction across frequencies.

Safe Exposure Chart

Details safe exposure times for various sound levels with and without ER-20 earplugs.

Important Usage Warning

Cautionary note regarding maximum exposure times and proper earplug insertion for effectiveness.

Earplug Features and Usage

Sound Reduction Characteristics

Describes how ER-20s provide even 20 dB reduction across all frequencies, unlike muffled foam earplugs.

Proper Earplug Insertion

Step-by-step guide on inserting earplugs correctly for optimal sound reduction and effectiveness.

Earplug Removal and Cleaning

Instructions for safely removing earplugs and cleaning them with a damp cloth.

Ordering Information

Details available colors for ER-20 earplugs and neck cords.

Etymotic Research ER-20 Specifications

General

Type	Earplugs
Noise Reduction Rating (NRR)	12 dB
Material	Silicone
Reusable	Yes
Color	Clear
Included Accessories	Carrying case