The 3M 1100 uncorded foam earplugs provide reliable hearing protection with a Noise Reduction Rating (NRR) of 29 dB, compliant with CSA Class AL standards. These disposable earplugs are crafted from soft, hypoallergenic polyurethane foam, featuring a tapered design and a smooth, dirt-resistant surface for comfortable insertion and extended wear. The slow-recovery foam conforms to the unique shape of the ear canal, creating an effective noise-reducing seal. Tested and approved against EN 352-2:2020, they offer an SNR of 35 dB, making them suitable for moderate to high noise environments.