• Reduction of extreme intensity in all three positions: On the top of the head, under the chin and on the back of the neck
• Articulated rotatable strap provides adjustable positions for easier fit and tightening.
• It has a safe head that is dermatologically hypoallergenic.
• Noise reduction rate (NRR) under the chin, 27 dB
• Overhead noise reduction rate (NRR), 24 dB
• Noise reduction rate (NRR) behind the neck of 24 dB
Standard: ANSI S3.19 – 1974 & CSA class AL
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