Pre-shaped foam earplugs with blue cord is the perfect noise reduction ear plug for construction, concerts and yard work. The level of noise entering a person's ear, when hearing protector is worn as directed, is closely approximated by the difference between the A weighted environmental noise level and the NRR (Noise Reduction Rating). The environmental noise level as measured a the ear is 92 dBA. The NRR is 33 decibels (dB). The level of noise entering the ear is approximately equal to 59 dBA.
Hearing protector class 5 tested to AS/NZS 1270. When selected used and maintained as specified in AS / NZS 1269, this protecto may be used in noise up to 110 dB(A) assuming an 85 db(A) criterion. A lower criterion may require a higher protector class.
Orange foam ear plugs noise reduction rating is 33 decibels when used as directed. The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (Higher numbers denote greater effectiveness).
How to Wear Your Orange Soft Foam Ear Plugs
When to Wear Your Ear Plugs
Please note: Improper fit of this device will reduce its effectiveness in attenuating noise. Consult the enclosed instruction for proper fit. Although hearing protectors can be recommended for protection against the harmful effects of impulsive noise the Noise Reduction Rating (NRR) is based on the attenuation of continuous noise and may not be an accurate indicator of protection attainable against impulsive noise such as gunfire. Constant or repetitive exposure to impulsive noise may lead to serious injury, including temporary or permanent deafness. The Noise Reduction Rating (NRR) calculated from the attenuation data is 33 dB. Earplugs must be properly fitted to attenuate noise effectively.