The Number One Hearing Protector in the World.
AOSafety introduced the first foam earplug over 25 years ago. The design of the AOSafety E-A-R Plug was so revolutionary that it defined a new standard by which all earplugs are now measured. Today, the line has been expanded to include various sizes and shapes of foam, pre-formed and noise-activated earplugs to meet virtually every wearer preference.