3M™ Earplugs, Top Up Bag, 37 dB, Uncorded, 1100R The 3M™ 1100 earplugs have a proven pre-moulded shape that is designed to fit most ear canals and offer substantial ear protection. The soft, hyperallergic polymer foam ensure low pressure in the ear canal and provides maximum comfort. The pre-moulded earplugs simply push into the ear canal for clean and the high attenuation earplugs are ideal for various applications. This package is designed as a refill for workplace earplug dispensers. Protecting against noise The 1100 earplugs have a smooth, dirt repellent finish for greater hygiene, longer life and a comfortable fit. They provide excellent noise protection value of 29 dB. Suitable for all frequencies, but a particular focus on low-level frequencies. Features and Benefits • Brightly coloured earplugs are preferred by most workers and easy to spot in compliance checks • High attenuation earplugs are ideal for many different noisy applications • The tapered design fits comfortably into ear canals • Smooth textured earplugs for in-ear comfort • Advanced foam formulation for all-day wearability FAQ's Do earplugs come in different sizes? There is no standard size for earplugs and most are one size fits all. However, some manufacturers have small, medium and large. Can these earplugs be washed and/or reused? Soft foam earplugs must be discarded once they are dirty. Disposable foam earplugs may not be washed or cleaned. Depending on the working environment and the employee's ear hygiene, these foam earplugs may need to be replaced at the end of the day or possibly a couple of times a day.