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Corded earplugs
ear protection
Quies corded earplugs are particularly suitable for intermittent noise, which they can reduce by 26 dB. Made of soft, flexible silicone, they are comfortable to use and guarantee effective protection.
The practical cord makes it easy to remove the earplugs and put them back in as needed. Reusable.
Material: Silicone.
Meets CEN (European Committee for Standardization) standard EN 352-2 for hearing protection devices.
- Instructions
- Recommendations
- Noise attenuation
- Insert the ribbed end of the earplug into the ear with a slight twisting motion.
- Hold the earplug in place and pull your earlobe up and back to allow any air to escape from the ear canal.
Clean the earplugs with warm, soapy water after use.
- Do not use if there is a danger that the cord could be caught or snagged during use.
- Use only if your ears are clean and healthy.
- Inspect your earplugs regularly and replace as needed.
- The earplugs may be altered by certain chemical substances. Please contact us for further details.
Storage: Keep your earplugs in their case and store in a cool, dry place.
| SNR | (Single Number Rating) | 26 |
|---|---|---|
| H | (High Level) | 27 |
| M | (Medium Level) | 22 |
| L | (Low Level) | 21 |
Firs table:
- SNR is the Single Number Rating system used to rate overall noise attenuation properties; it is the average of all other measurements combined.
- H, M, and L stand for High, Medium, and Low frequencies.
The numbers 27, 22, and 21 denote the average noise attenuation in decibels for the high, medium, and low frequencies, respectively.
| Fréquence (Hz) | 63 | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 |
|---|---|---|---|---|---|---|---|---|
| Affaiblissement moyen (dB) | 27,0 | 24,3 | 25,7 | 26,0 | 25,2 | 29,9 | 39,0 | 41,6 |
| Ecart-type (dB) | 5,4 | 4,8 | 5,8 | 5,8 | 4,5 | 4,3 | 5,8 | 4,1 |
| APV (dB) | 21,6 | 19,5 | 19,9 | 20,2 | 20,7 | 25,6 | 32,2 | 37,5 |
Second table:
- Frequencies stated in Hertz (Hz): 8 frequencies tested (from 63 to 8,000 Hz)
- Noise attenuation stated in decibels (dB): For example, for a frequency of 125 Hz, noise is reduced by 24.3 dB.
- Standard deviation in decibels (dB): The difference between average noise attenuation and APV.
- APV, or Assumed Protection Value, in decibels (dB): Indicates noise attenuation quality. It is calculated mathematically.
The figures presented in these tables were obtained from tests run by the French National Institute for Research and Safety (INRS) according to CEN standard EN 352-2: 2002, which sets forth noise protection device standards and the testing methods used to check compliance with these standards.
Quies corded earplugs reduce noise by 26 dB.