What are PU earplugs?
PU earplugs are generally low-pressure foam mold materials or anti-noise earplugs made of high-elastic polyester materials. The earplugs have a smooth surface and slow rebound, and there is no pain in the ear when used. The sound insulation effect is between 25dB-40dB . Very suitable for use during sleep.
PU earplug service life.
Generally normal PU earplugs have the characteristics of slow rebound. In order to have a better sound insulation effect, the number of pores in PU earplugs is far more than that of silicone earplugs, which also causes the pores to easily hide bacteria. Generally, it can be discarded after 2-3 uses.
Can PU earplugs be cleaned?
Washing is not recommended, as washing will destroy the slow resilience of PU earplugs. After cleaning some PU earplugs, they will lose their resilience and cannot be worn. And the sound insulation effect will be greatly reduced. The price of PU earplugs is not very expensive, it is recommended to discard after use. Avoid ear problems caused by bacterial infections.
Characteristics of PU earplugs
As we all know, PU earplugs have slow resilience. After rubbing it into the ear canal, it will gradually expand to fill the ear canal. Its soft material ensures that there is no pain after the ear canal is inserted. The raw material itself does not have waterproof performance, can not be used as swimming earplugs, only for hearing protection.
Classification of PU earplugs
At present, there are many types of PU earplugs on the market, which are mainly manifested in different shapes.
A common type is a bullet-shaped earplug that looks like a bullet.
Large bell-shaped earplugs with a wider bottom.
T-shaped earplugs, also known as rocket-shaped earplugs, are fashionable and more popular with teenagers.