3M Optime I H510A Headband Ear Defenders

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Optime I - Versatile protection characterised by their lightness. A combination of low profile and generous inside depth make them both comfortable to wear and easy to team with other equipment. Optime I is a natural choice for all round protection for both long and short spells. Features • Slim line cups for moderate attenuation (SNR 27dB) that meet the needs for most industrial applications • Lightweight design • Simple colour coding: Green, indicating the first level of attenuation within the range • For use in light industry noise, e.g. Grounds Maintenance • Conforms to EN352-1 H=32 M=24 L=16 SNR 27dB Samco Order Code: 130035

 Sound Attenuation, H, M, L & SNR Values 
Frequency (Hz)	   Mean	                   Standard	              Assumed
		   Attenuation(dB)         Deviation	              Protection Value
125	           11.6	                   4.3	                      7.3
250                18.7	                   3.6	                      15.1
500	           27.5	                   2.5	                      25.0
1000	           32.9	                   2.7	                      30.1
2000	           33.6	                   3.4	                      30.2
4000	           36.1	                   3.0	                      33.2
8000		  35.8                     3.8                         32.0
H = 32, M = 25, L = 15, SNR = 27

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3M
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