Classified by material

Silicone earplugs: The price is more than 500 times more than the cost of homemade earplugs. Silicone earbuds are softened with warm water before putting them into the ear canal. Using the characteristics of using 5 times repeatedly with high hardness, can cause the ear canal pain can not be continuous and effectively silent and low cost The use of silica gel construction earplugs though airtight and non-porous, but due to its rubber hardness rebound and adult different types of ear canal completely coincide with a small probability, it will cause pinhole leaks or small holes leak, a leak Gas soundproofing reduces the noise to about 20 to 30 decibels. The inner wall of the ear canal is soft and flexible. The obstruction of the ear can lead to redness of the ear canal, leakage of the ear plugs, and pain in the sleeping side. This can not effectively achieve long-term comfort and quietness. Inconsistent with the wall of the ear curve, which can lead to red and swollen earaches, it is impossible to insert it into long-term use, and the quality of noise and sleep decreases. The characteristics of this product are now used to use the hardness with the use of the finished material is airtight after the finished rubber-like, so that the ear canal comfort and sound insulation is good, to ensure a pair of silicone earplugs cost to do more than 500 pairs of earplugs can be placed continuously into the ear canal Use N years without any discomfort.

Sponge-type earplugs: The low-pressure foam molding material, anti-noise earplugs made of high-resilient polyester material have a smooth surface, slow rebound, no pain when the ear is used, and the sound insulation effect is between 25dB-40dB. This kind of earplug is very suitable for sleep use every night, but because of the slow rebound effect after washing, it cannot be used repeatedly. In general, the sponge earplugs are disposable. However, with the development of science, there are some sponge ear plugs on the market that can be used repeatedly for more than six months and can be scrubbed.

Wax earplugs: Wax earplugs are the earliest ancestors of anti-noise earplugs, which can be softened by hand and shaped to fit the ear canal. However, the disadvantage is that it is not hygienic. The wax may remain in the ear canal and is not easy to clean. And wearing a long ear will feel pain

Sort by shape

The most common form of anti-noise earplugs is the bullet head type. There are also Bacou's patented rocket (T-shaped), horn, cylindrical and tripod.

Bullet-shaped head used more types, recognized sponge earplugs are more comfortable and good sound insulation

The rocket type is easy to pull out, but it is easy to cause gaps in the ear canal, resulting in unsatisfactory sound insulation.

Trumpet-shaped center for easy insertion of earplugs for silicone material

The shape of the Christmas tree is generally silicone material, which brings a slight feeling of pain. It is used for labor protection earplugs and swimming earplugs.

The derivation of the pagoda-shaped bullet head shape is an earplug shape independently developed by 3M.

Cylindrical This earplug has a high degree of softness and can be easily shaped into a shape suitable for the ear canal. However, compared to the bullet head and the rocket type, since the two heads are the same width, the one end that enters the ear canal does not easily fit into the size of the ear canal.

Classification by function

Labor insurance earplugs - also made of silicone, can prevent the sound of the eardrum caused by the machine discomfort, anti-noise performance is good, but relatively hard, there is a clear feeling of pain, not suitable for sleep use. General labor-friendly earplugs are equipped with a rope for easy removal at any time

Sleeping earplugs—usually made of soft, slow-rebound materials. The noise immunity of sleep earplugs currently available on the market can basically reach the level of silicone, but due to the waterproofness of this material is not as good as that of silicone, it is inconvenient to clean and use in the production workshop. Not much, generally used for daily sleep. There are also lines, but often feel uncomfortable on the neck when sleeping.

Swimming ear plugs (waterproof ear plugs) - to prevent water from entering the ear canal, generally use good waterproof material, such as silicone. But there is a feeling of pain in the ear. Not suitable for sleep and daily use.

China Labor Insurance Network