[Apparatus for purification of air from dust and smoke and a sphere of its application].
D000388:Air; D004391:Dust; D006801:Humans; D012906:Smoke
D004391:Dust; D012906:Smoke
AIR; DUST; SMOKE
Ustroistva dlia ochistki vozdukha ot pyli i dyma i oblast' ikh primeneniia.