If you have ever used foam earplugs, you may have noticed that they come in many different shapes and sizes. They are usually made of a soft, spongy material that is inserted into the ears to block out noise.

Here are three things you should know about foam earplugs:

Foam earplugs are made from soft, spongy materials that can be compressed into a small shape. The compressed material is then inserted into your ear to block out noise. The materials used in the construction of foam earplugs include latex, silicone or polyurethane. Some foam earplugs will also contain cotton fibers to make them softer on the skin.Memory sponge is a polyurethane sponge with slow rebound characteristics. It was originally designed by NASA's Ames Research Center to reduce the enormous pressure borne by astronauts during the spacecraft's cosmic acceleration process. The Ames Research Center authorized a European company to develop and introduce two civilian applications in the 1990s, first in medicine and later in household products. After being widely recognized abroad, it gradually emerged in China.

The main function of foam earplugs is to reduce noise levels by about 30 decibels (dBs). People who work in noisy environments or those who travel often often wear these earplugs because they help protect their hearing from damage caused by loud noises such as jackhammers or jet engines.

foam earplugs are used to block the noise in your ears. They are made of soft material, which makes them comfortable to wear. foam earplugs are ideal for sleeping, studying and traveling.

Foam earplugs are disposable, and repeated use is not recommended. It is also not allowed to wash with water. foam is absorbent material and cannot be used for swimming earplugs.

Foam earplugs come in different sizes, shapes and colors so you can choose according to your needs. The size of these earplugs depends on their thickness, but it should fit properly into the outer ear canal without touching the eardrum.

The color of foam earplugs can help you identify its purpose or usage easily; for example: blue color indicates deep sleep or relaxation purposes; green color indicates for blocking out snoring sounds; red color indicates for blocking out high-frequency noises; yellow color indicates for blocking out low-frequency noises; black color indicates for blocking out loud music or other high-pitched sounds; white color indicates for blocking out moderate noise levels effectively.

When inserting earplugs, it can cause an increase in air pressure in the middle ear and push it towards the eardrum, causing pain because the earplugs are inserted too deeply. To avoid this danger, please first rub the earplugs thin and insert them into the pre prepared ideal position. It is best not to push them inward when the earplugs are fully inflated. On the contrary, when pulling out earplugs, in order to avoid squeezing the eardrums, the earplugs should be slowly rotated out rather than forcefully pulled out.