Etymotic DI-15® High-Definition Electronic Earplugs for Dentists - Manual

R E U S A B L E
H E A R I N G P R O T E C T I O N
Frequency in Hz 125 250 500 1000 2000 4000 8000
Mean Attenuation in dB 13.2 15.3 16.7 18.3 20.8 18.3 21.6
Standard Deviation in dB 2.5 2.3 2.2 3.1 2.8 2.0 2.9
APV in dB 10.7 13.0 14.5 15.2 18.0 16.3 18.7
H = 17 dB, M = 16 dB, L = 14 dB, SNR = 18 dB
Noise
Reduction
Rating
DECIBELS
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
LABEL REQUIRED BY
U.S. E.P.A. REGULATION
40 CFR Part 211, Subpart B.
Federal law prohibits
removal of this label
prior to purchase.
DI 20
EPA
H: Average attenuation characteristics in the high frequency spectrum (>2 kHz)
M: Average attenuation characteristics in the mid frequency spectrum (0.5-2 kHz)
L: Average attenuation characteristics in the low frequency spectrum (<0.5 kHz)
APV (Assumed Protection Value): Europe
SNR (Single Number Rating): Average attenuation characteristics in the standard
frequency spectrum
European Union testing conducted by: CIOP-PIB No.1437, Warsaw, Poland. Attenuation
was determined in accordance with EN352.
The level of noise entering a person’s ear when a hearing protector is worn as directed
is closely approximated by the difference between the A-weighted environmental noise
level and the NRR.
Improper fit of this device will reduce its effectiveness in attenuating noise. Consult the
enclosed instructions for proper fit. Although hearing protectors can be recommended
for protection against the harmful effects of impulsive noise, the Noise Reduction Rating
(NRR) is based on the attenuation of continuous noise and may not be an accurate
indicator of the protection attainable against impulsive noise such as gunfire.
Recommended
for use in
dental offices.
IMPORTANT: di-20 earplugs are reusable. With heavy use the
eartips can weaken and could break. Replace every 3-6 months.
ER020670-A INCLUDES EARPLUGS, CASE & NECKCORD