Here is how to properly use the inexpensive soft foam ear plugs: https://www.cdc.gov/niosh/mining/content/earplug.html https://www.cdc.gov/niosh/mining/content

Here is how to properly use the inexpensive soft foam ear plugs: https://www.cdc.gov/niosh/mining/content/earplug.html https://www.cdc.gov/niosh/mining/content/earplug.html What I often see people do is skip all that and just stuff it in the ear until it doesn't fall out. This does not get a proper seal. It might still be better than nothing but I doubt it protects much when used incorrectly.