Page 12 - FT EAR PROTECTION

SAFETY EAR MUFF

AV-HB-650 earmuff is our newest high performance earmuff with a Noise Reduction Rating of 29 dB. This
earmuff has been designed to provide excellent full spectrum attenuation. AV-HB-650 uses a fork style
headband for even distribution of the pressure & improved balance for extra deep ear cups.

AV-HB650:
Features AV-HB650 | Art. No: 2536AV482
• Superb full spectrum and low frequency attenuation
• Extra wide ear cushions for highest comfort
• Fork-type headband provides low and consistent
pressure on the wearer’s head
• Soft padded head cushion provide the highest level of
all-day comfort
• Ultimate performance and comfort
• Headband : Stainless Steel
• Cushion : Wide Ear Cushions
• Weight : 10.1 oz./272g

Standard
EAR PROTECTION • 29 dB NRR (ANSI)
• ANSI S3.19-1974 and CE EN-352
• 34dB SNR (CE)

Storage micro-fiber
bag (AV-SGB30)

ATTENUATION PROPERTIES OF ULTRASONIC™ HB-650 EAR MUFFS

• ANSI S3.19
Frequency, Hz 125 250 500 1000 2000 3150 4000 6300 8000 H M L NRR
dB Mean Attenuation 22.1 27.9 34.9 35.8 37.3 41.4 42.3 41.6 41.2
37 32 27 29
Std. Deviation 2.9 2.8 3.4 2.0 2.5 2.7 2.8 3.1 3.7

• CE EN352-1
Frequency, Hz 63 125 250 500 1000 2000 4000 8000 H M L SNR
dB Mean Attenuation 19.3 19.3 26.1 34.0 39.6 35.1 43.5 38.9
Std. Deviation 3.8 2.7 2.8 2.6 3.2 3.0 2.9 5.2 33 30 21 32
Protection, dB 15.5 16.6 23.3 31.4 36.4 32.1 40.6 33.7

12 | “WE ARE TRUSTED TO DELIVER QUALITY”