DI-20 High-Fidelity Earplugs for Dentists User Manual
Contents
1. Noise Reduction 1 2 es 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 HIGH FIDELITY EARPLUGS ETYMOTIC RESEARCH INC ELK GROVE VILLAGE IL 60007 REUSABLE HEARING PROTECTION LABEL REQUIRED BY Federal law prohibits nm removal of this label EPA U S E P A REGULATION prior to purchase 40 CFR Part 211 Subpart B 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 25 23 22 31 2 8 2 0 29 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 H Average attenuation characteristics in the high frequency spectrum gt 2 kHz M Average attenuation characteristics in the mid frequency spectrum 0 5 2 kHz L Average attenuation characteristics in the low frequency spectrum lt 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 Reco mmen d ed was determined in accordance with EN352 The level of noise entering a person s ear when a hearing protector is worn as directed for use In is closely approximated by the difference between the A weighted environmental noise F level and the NRR dental offices Imprope2. r fit of this device will reduce its effectiveness in attenuating noise Consult the i 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 H of the protection attainable against impulsive noise such as gunfire IMPORTANT di 20 A n are reusable With heavy use the eartips can weaken and could break See n every 3 6 months ER020670 A INCLUDES EARPLUGS CASE amp NECKCORD General Information DI 20 high fidelity earplugs are reusable Foam earplugs muffle sound These earplugs use a unique acoustic construction that produces almost equal sound reduction 20 dB at all frequencies All sounds and speech remain clear just quieter like turning down the volume eartip end cap stem Insertion e Before inserting earplugs make sure they are clean e Grasp the endcap between thumb and forefinger e To ease insertion pull the top of the ear outward and upward See illustration e Gently push and twist the earplug until the eartip seals in the ear canal e Moistening the eartip may ease insertion Removal e Remove with a slow twisting motion to gradually break the seal and avoid discomfort e After removal place earplugs in a clean protective case For additional information contact Dental Innovations 46 Valen
3. tine Street Cambridge MA 02139 Cleaning e Do not take earplugs apart e Clean after each use e Wipe clean with a damp cloth as needed e Do not immerse earplugs in water e Do not clean with harsh chemicals e Alcohol is not recommended Storage e Always store earplugs in a clean protective case e Do not store other objects except a neck cord in the earplug case Warnings e These earplugs comply with EN 352 2 standard of measurement e The triple flange eartip must be fitted adjusted and maintained properly i e seal the ear completely to achieve the expected attenuation and hearing protection e Use earplugs continuously when noise levels are potentially harmful e Make certain that the earplugs provide adequate protection for the noisy environment e Regularly inspect the earplugs to assure their continued serviceability e Never remove the endcap while the earplugs are in use e Failure to follow these warnings may severely reduce the amount of hearing protection provided by the earplugs e f a cord is used take precautions that it does not catch on a nearby object e This product may be adversely affected by certain chemical substances e Do not clean with harsh chemicals or alcohol www dentalinnovationsllc net
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