Bilsom 303L vs E-A-R Classic II - Comparison


The Bilsom 303L is a stronger earplug than the E-A-R Classic II. Please have a look at the decibel comparison chart below. More decibel means stronger sound protection.

The individual reviews of each earplug are available here:
Bilsom 303L

E-A-R Classic II


Bilsom 303LE-A-R Classic II
Brand:Howard Leight3M


Bilsom 303L
Bilsom 303L picture

E-A-R Classic II
E-A-R Classic II picture of packagingE-A-R Classic II picture

Attenuation (Europen Standard)

Attenuation according to measurment standard EN-352-2:2002

More decibel (dB) means more sound protection. More hertz (Hz) means a higher pitch sound.

Bilsom 303L vs E-A-R Classic II attenuation decibel (db) comparison chart (graph)

Overall rating
Bilsom 303LE-A-R Classic IIDifference
Attenuation by frequency
Bilsom 303L: dB28.4037.3037.9039.1036.0034.6042.5046.40
E-A-R Classic II: dB22.3023.3024.6026.9027.4034.1041.6040.40
Difference: dB6.1014.0013.3012.208.600.500.906.00
Bilsom 303L: SD6.409.009.209.707.904.604.904.70
E-A-R Classic II: SD5.405.303.605.404.803.103.506.40
Difference: SD1.003.705.604.303.101.501.40-1.70
Bilsom 303L: dB less SD22.0028.3028.7029.4028.1030.0037.6041.70
E-A-R Classic II: dB less SD16.9018.0021.0021.5022.6031.0038.1034.00
Difference: dB less SD5.1010.307.707.905.50-1.00-0.507.70

Source Bilsom 303L: Instruction Manual - Bilsom 303 (global). Retrieved from on 2016-08-01
Source E-A-R Classic II: 3M. E-A-R Classic II Gehörschutzstöpsel - Technisches Datenblatt. Retrieved from on 2016-12-18