Noise attenuation
Reinforced attenuation on high frequencies (the most risky) and 2 levels of attenuation (high or very high) thanks to the closing flap:
- low protection in quiet (4dB to 80dB of noise).
- moderate attenuation in medium noise (24dB to 100dB).
- high attenuation in high noise (39dB to 120 dB).
Product details by manufacturer:
Alvis Mk5 has obtained CE certification for PPE (Personal Protective Equipment). Attenuation values tested in accordance with EN 352-2: 2002 of Directive 89/686/ECC:
ALVIS Mk5 SNR : 32 H : 30 M : 31 L : 28
ALVIS Mk5 SNR : 20 H : 26 M : 16 L : 10
Product description by manufacturer:
Alvis Mk5, advantages:
Enhanced attenuation of mid and high frequencies: +6dB and +5dB of attenuation compared with the Mk3, i.e. 4 times more protection.
Good hearing precision in the open position,
2 levels of attenuation thanks to the closing flap,
Effective filtering of sounds without distorting them, very good understanding of human speech,
Very quick and easy to fit, excellent fit in the ear,
Super comfortable, for all-day wear.
Size
Available in two sizes, M and L.