Earinstop
Earinstop is a brand of earplugs designed to reduce noise exposure. The product is manufactured by 3M, a multinational conglomerate corporation. Earinstop earplugs are typically made from a soft, pliable foam material that expands to fit the ear canal, creating a seal against sound. They are intended for use in a variety of noisy environments, such as concerts, construction sites, and workplaces, as well as for travel and sleep.
The effectiveness of earplugs is measured by their Noise Reduction Rating (NRR), which indicates how much sound