Suction trap

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A suction trap is a machine that uses air to suck liquid or mucus. It is widely used to extract mucus from recently born babies that are unable to do it by themselves.

File:Inhalating-SuctionTrap-P1090507.JPG
Suction traps that works by inhalation
File:Pumping-SuctionTrap-P1090508.JPG
Pump-powered suction trap