First of all, PU earplugs are the most effective passive noise reduction earplugs. Calculated under the SNR standard, they can reduce noise by about 30dB. What’s more, PU earplugs are light and soft in texture and have a certain degree of breath-ability, making them suitable for long-term wearing. Because the earplugs are very compact in size, workers will not feel being impacted when they are working. Finally, PU earplugs are relatively inexpensive and suitable for large-scale distribution. The earplug dispenser is used to distribute earplugs, which can make the earplugs easily being taken by workers themselves. It is convenient and sanitary, and it can also prevent the earplugs from being exposed to the air for a long time, which may damage their slow resilience.
At the same time, PU earplugs are not only suitable for workers who work in noisy factories, but also are well-worked for different people in different situations. For example, night sleep, daily rest, subway and airplane commuting, music festivals, and other occasions.
But it should be noted that people should avoid contacting PU earplugs with water. The resilience of PU earplugs will be impaired after absorbing water, which is unfavorable for people to wear. As a result, their noise reduction function will also disappear.