Labor Protection Earplugs
Labor protection earplugs
The model-preventive earplugs are made of silicone or low-pressure foam molding material and highly elastic polyester material. After being inserted into the ear canal, it is in close contact with the external auditory canal to isolate the sound from entering the middle ear and inner ear (ear drum) to achieve the purpose of sound insulation, thereby protecting the hearing of workers.
1. Slow rebound effect
The elasticity is too large. When the earplugs are inflated, they can compress the skin of the external auditory canal and can cause ear swelling, earache and other uncomfortable symptoms. When the elasticity is too small, it cannot be in close contact with the external auditory canal and the sound insulation effect is reduced. Therefore, the earplug's rebound speed must be observed. The longer the rebound time, the better the quality.
Softness directly affects the comfort of wearing earplugs
3. Surface texture
Some earplugs feel sticky and stick in the ear and stick to the skin of the ear canal. Avoid buying. The best way to discriminate is to stick the two earplugs tightly together and separate them to see if they are separated as quickly as possible.