無む煙えん

noun, noun which may take the genitive case particle 'no'

smokeless

Describes something that produces no smoke, such as fuel, a stove, or a cigarette. Often used in compound nouns like 無煙炭 (anthracite) or 無煙火薬 (smokeless powder).

• このストーブは無む煙えんだから室しつ内ないでも安あん心しんだ。

  This stove is smokeless, so it's safe even indoors.

• 無む煙えんタバコは煙けむりが出でないが、健けん康こうに害がいがないわけではない。

  Smokeless tobacco doesn't produce smoke, but that doesn't mean it's harmless.