3m sleeping earplugs are made of high-quality environmentally-friendly sanitary silicone, so they have good sound insulation and are matched with strong and soft belt lines. Ordinary earplugs are generally sponge, and the sound insulation effect is average.
It is best to choose silicone earplugs when purchasing earplugs, because the sound insulation effect is better. Silicone earplugs are soaked in warm water before use. Because the inner wall of the ear canal is bent and soft, if the earplugs are too hard, the ear canal will be red and swollen, which can also lead to earache and redness.