Nylon mesh face screen, ear muffs cover 27dB noise reduction, adjustable head strap.
A.M. Leonard's down to earth guarantee. This product is covered under A.M. Leonard's full one year warranty against manufacturer defects for products when used under normal conditions.
QUESTION: What is meant by Noise Reduction Rating? ANSWER: That is the number of decibels by which the hearing protector will reduce the noise. For example, if you are working in an environment with a noise level of 90 dB, a protector with 22 dB NNR (Noise Reduction Rating) will reduce the noise 22 decibels. Scientifically that is a lot more than it appears, because every time you reduce noise levels by three decibels it is like cutting it in half.