KN95

词形变化

KN95s 复数 KN95s

释义与例句

n.
  1. 1.

    An air particulate filtration standard originating in the People's Republic of China, which requires filtration of 95% of air particulates that are 0.3 microns and larger.

    不可数 可数
  2. 2.

    Ellipsis of KN95 filter, a filter implementing the standard.

    可数 不可数
  3. 3.

    Ellipsis of KN95 mask, a facemask using a filter conforming to the standard.

    可数 不可数

词源

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.

来源：wiktionary