Bilsom 303L vs Alpine PartyPlug - Comparison


The Bilsom 303L is a stronger earplug than the Alpine PartyPlug. 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

Alpine PartyPlug


Bilsom 303LAlpine PartyPlug
Brand:Howard LeightAlpine Hearing Protection


Bilsom 303L
Bilsom 303L picture

Alpine PartyPlug
Alpine PartyPlug picture of packagingAlpine PartyPlug picture ear wearing , side view ear wearing , side angle view

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 Alpine PartyPlug attenuation decibel (db) comparison chart (graph)

Overall rating
Bilsom 303LAlpine PartyPlugDifference
Attenuation by frequency
Bilsom 303L: dB28.4037.3037.9039.1036.0034.6042.5046.40
Alpine PartyPlug: dB8.8010.3013.2016.6020.6025.4025.2019.20
Difference: dB19.6027.0024.7022.5015.409.2017.3027.20
Bilsom 303L: SD6.409.009.209.707.904.604.904.70
Alpine PartyPlug: SD4.403.303.002.402.803.005.004.10
Difference: SD2.005.706.207.305.101.60-0.100.60
Bilsom 303L: dB less SD22.0028.3028.7029.4028.1030.0037.6041.70
Alpine PartyPlug: dB less SD4.407.0010.2014.2017.8022.4020.2015.10
Difference: dB less SD17.6021.3018.5015.2010.307.6017.4026.60

Source Bilsom 303L: Instruction Manual - Bilsom 303 (global). Retrieved from on 2016-08-01
Source Alpine PartyPlug: PartyPlug. Retrieved from on 2016-08-21