出典:Wiktionary
出典:『Wiktionary』 (2026/05/02 23:21 UTC 版)
Borrowed from Chinese KN95, from Mandarin 口罩 (Kǒuzhào) + English N95, from an initialism of Not resistant to oil particles with 95% filtration efficiency in NIOSH air filtration ratings.
KN95 (countable and uncountable, plural KN95s)