(ˈ) ̷ ̷| ̷ ̷(ˌ) ̷ ̷ ̷ ̷ noun
: a pocket-size respirator for emergency use that protects the wearer for a period of about one-half hour against atmospheres containing carbon monoxide gas (as in a contaminated mine)
(ˈ) ̷ ̷| ̷ ̷(ˌ) ̷ ̷ ̷ ̷ noun
: a pocket-size respirator for emergency use that protects the wearer for a period of about one-half hour against atmospheres containing carbon monoxide gas (as in a contaminated mine)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012