If noise levels in your lab exceed 85 dB, engineering or administrative controls are required to reduce the risk of occupational noise-induced hearing loss. If you think your lab has harmful noise levels (e.g. if it is difficult to carry on a conversation), contact the Safety Office at ext. 33587 for an assessment. The Safety Office will do sound measurements and recommend the method and amount of attenuation required and the available types of hearing protection.
Types of hearing protectors
How to properly fit ear plugs
- Before fitting any ear plugs, make sure your hands are clean.
- Hold the ear plug between your thumb and forefinger. Roll and compress the entire ear plug to a small, crease-free cylinder.
- Use your other hand to reach over your head and pull up and back on your outer ear. This straightens the ear canal, making way for a snug fit.
- Insert the ear plug and hold for a few seconds. This allows the ear plug to expand and fill the ear canal. When properly inserted, the ambient sound level should drop as the earplugs expand. If you can cup your hands over your ears and the noise seems to decrease, your ear plugs are probably not fitted properly. Remove and refit following instructions.
- Always remove ear plugs slowly, twisting them to break the seal.