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Meaning of R100 | Babel Free

Noun CEFR B1

Definitions

R100; Ellipsis of NIOSH R100.
uncountable
R100 standard
uncountable
R100 filter
countable

CEFR level

B1

Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.

See also

R2-D2 R2I R2P R2R R34 r8