3M PELTOR™ Optime™ II H520A Protetores auriculares passivos, arco de cabeça, SNR 31 dB, Verde

The 3M PELTOR™ Optime™ II H520A passive earmuffs provide reliable hearing protection for demanding industrial environments. With a high noise reduction rating of SNR 31 dB, they effectively reduce harmful noise while maintaining comfort for extended wear. The robust headband design and wide, liquid-filled sealing rings ensure a secure fit and excellent attenuation across all frequencies.

Advantages

These earmuffs feature large internal space to reduce heat and moisture buildup, and the low-profile cups allow easy integration with other personal protective equipment. The stainless steel headband is durable and adjustable, while the foam and liquid-filled cushions provide long-lasting comfort.

Suitable for

• Heavy industry and manufacturing
• Construction sites
• Airport ground crews
• Agricultural operations
• Any noisy environment requiring reliable hearing protection

Key specifications

• Noise Reduction Rating (SNR): 31 dB
• High Frequency Attenuation (H): 34 dB
• Medium Frequency Attenuation (M): 29 dB
• Low Frequency Attenuation (L): 20 dB
• Mounting Style: Headband
• Color: Green
• Standards: EN 352-1:2002
• Ear Cushion Material: Foam and liquid-filled sealing rings
• Headband Material: Stainless steel wire, PVC, ABS
• Packaging Quantity: 1 Pair

Recommendations

For optimal protection, ensure proper fit and seal around the ears. Replace cushions and foam inserts regularly to maintain performance. Suitable for adult users in continuous noise exposure up to 31 dB SNR.