See the outline below for the many advantages of filter earplugs compared to foam earplugs.

 

Foam earplugs

Alpine earplugs

Muffling  happy smiley happy smiley
Some particular noises are being muted and some not  sad smiley happy smiley
Speech remains intelligible sad smiley happy smiley
Comfort happy smiley+sad smiley happy smiley
Sense of isolation sad smiley happy smiley
Pressure regulation sad smiley happy smiley
Combination with glasses/helmets happy smiley happy smiley
Hygienehappy smiley

(Only with single use)

 happy smiley
Reusable and easy to clean sad smiley happy smiley
Adapting the fit

(for small ear canal)

 sad smiley happy smiley