With the development of human beings, there are more and more kinds of acoustic sponge earplugs, which are derived from the original single basic shape to the changeable shape of the big clocks, bullets, rockets, and soon. So today, I will focus on the noise reduction effects of sponge earplugs of different shapes.
Conventional bullet shaped sound insulation sponge earplugs
First, introduce the most original conventional bullet-shaped sound insulation earplugs. This earplug has a diameter of 14 mm and a height of 25 mm. The average depth of the external auditory canal in adults is 2.5-3.5cm. Ordinary sponge earplugs can ensure that they meet the needs of most adults. The noise reduction effect of bullet-shaped earplugs is SNR 38 dB.CE test report can be issued. When used during sleep, it can block most of the sound and keep people in a comfortable environment. In order to meet the color needs of different people, there are also a variety of colors to choose from.
At the same time, you can also accept color customization, as long as there are colors on the Pantone color card. Most can be modulated.
Cylindrical shaped sound insulation sponge earplugs
The second is the cylindrical-shaped sound insulation sponge earplugs. This earplug has a diameter of 12.3mm and a height of 20 mm. The noise reduction effect is SNR 36dB, and relevant certificates can also be provided. The effect of noise reduction is tested, and there is no false fiction. Cylindrical earplugs are the same size up and down. They can be used directly without distinguishing between positive and negative in a dark environment. Convenient and fast, most customers require the design of this earplug. It is generally applied to labor protection articles, which are used by workers in factories.
The design of band thread can make the earplugs not lost, and can be taken down and hung around the neck during rest time, without occupying the space in the pocket. Like traditional bullet-shaped sponge earplugs, cylindrical earplugs can also be customized in a variety of colors, including customization of the outer packaging, We have enough strength to undertake your logo printing and color customization.
Bell shaped sound insulation sponge earplugs
The third is a bell-shaped sponge earplug, which looks like a bell and is designed to be narrow at the top and wide at the bottom. The advantages of this design are: first, it is easy to wear and take out; second, the tail can perfectly fit the ear canal to achieve a better noise reduction effect. The bottom diameter of the bell-shaped sponge earplug is 17 mm and the height is 25 mm. It is suitable for people with European ear canal or large ear canal. Due to the influence of humidity in the air, the average weight of earplugs is about 2g.
Because the inside of the sponge earplug is a fluffy and porous structure, which will absorb water vapor and moisture in the air, it is normal to have weight error.
Next, it introduces the common characteristic of sponge earplugs: slow rebound. A slow rebound means that a material has the ability to deform slowly. After being deformed by an external force, it will slowly return to its original shape. The recovery time of sponge earplugs is about 60 seconds at room temperature and about 30 seconds in human ears. This time is just enough to ensure the completion of wearing. Slow rebound makes wearing easier and allows the ear canal to adapt slowly.
For all products, you can click the blue text to view the details. If you are interested, you can also contact us in the upper right corner. We will reply as quickly as possible within 4 hours.