Ear Protection
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| We generally take our hearing for granted but believe it or not, our ears are delicate instruments. Loud and sustained high noise levels damage our hearing and can cause temporary and permanent damage.
Annoying afflictions such as tinnitus, headaches and ringing can be easily avoided by wearing unobtrusive earplugs or earmuffs. If there is a risk of flying objects and particles entering the ear, earplugs should be worn.
Choosing the right ear protection
- Assess the audible noise level whether using power tools, operating machinery or where there are high levels of combined background noises
- Remember prolonged exposure to low noises can cause damage and irritation
- Noises are enhanced in small and confined areas
- Ensure your chosen protection adequately masks the noise
- Make sure earmuffs and plugs fit properly
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EN 352 – Hearing Protectors
The particular requirement in relation to the ability of hearing protectors to reduce noise below daily limit levels is addressed in the standard by requiring the sound attenuation of the hearing protectors, measured in accordance with EN 24869-1, to be not less than a specified minimum. Further, by requiring that the measured sound attenuation be declared, the selection of suitable hearing protectors for individual circumstances may be undertaken according to established practice.
EN 352-1 deals with requirements for earmuffs, EN 352-2 with earplugs, EN 352-3 with earmuffs attached to industrial safety helmets.
The requirements of the standard EN 352-1, -2 and -3 are concerned primarily with the physical and acoustic performance of the ear protection. Sizing requirements are also key, ensuring all users are catered for.
- Sizing and adjustability – diameters of plugs and if headband plugs, fitting and force of the band are tested as part of the standard. If earmuffs, a variety of sizes with adjustable abilities should be offered to accommodate all users
- Materials and construction – materials should not cause skin irritation and should be comfortable to fit and remove from the ear if plugs, or to wear around the head if muffs. Elements such as cushion pressure and cup rotation are also tested as part of the standard
- Performance – resistance to damage when dropped, cleaning and disinfecting agents and attenuation levels are tested in accordance with the standard’s requirements
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