FIELD: manufacturing technology.
SUBSTANCE: described is the suction apparatus comprising suction unit (26), dirt collector (12), filtering device (21), through which the dirt collector (12) communicates with the suction unit (26), and cleaning device (33) intended for the filtering device (21) cleaning, and comprising valve device (33) for the external air input. According to the invention, the suction apparatus comprises at least one air guide channel (120) having the first connection (134), communicating with the cleaning device for the outside air supply to the latter, from at least one guide channel (120), second connection (136) for exhausted from the suction unit (26) air input into at least one guide channel (120) and the third connection (138), communicating with surrounding the suction apparatus ambient environment (140) and enabling air ingress from the ambient environment (140) into at least one guide channel (120).
EFFECT: suction apparatus is described.
37 cl, 9 dwg
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