FIELD: machine engineering.
SUBSTANCE: suction apparatus comprising a suction unit (40), a conductive suction device (88) communicating with the suction unit (40), a working medium supply device (28), a feeding device for feeding working medium (68) communicating with the working media supply device (28) and a discharge element (110) connected to the feeding device (68) and to the sucked medium conducting device (88) configured for directing the working medium from the feeding device (68) into the sucked medium conducting device (88) to clean the latter is described.
EFFECT: increased purification efficiency.
29 cl, 9 dwg
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