Ear muffs SPA3 SNR23DB SPA3BL

Ear-muffs with polystyrene (PS) and synthetic foam cups. ABS headband with height adjustment. Low pressure cushions. SNR: 23 dB. Weight: 158 g.
The product complies with the requirements of the European directive 89/686,, especially in terms of ergonomics, harmlessness, comfort, aeration and flexibility, and with the European standard EN352-1: 2002.
High frequency suppression H = 30 dB.
Medium frequency suppression M = 27 dB.
Low frequency attenuation L = 17 dB.
Standard noise suppression SNR = 23 dB.