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4th May 2020
11:30am BST

The LifeVac pretty much works as a plunger – and the inventor, Arthur Lih, has already sold his device to thousands of homes and rescue services across the US.
This is what it says on the website:
"The LifeVac is a non-powered, non-invasive, single patient portable suction device developed for resuscitating a victim with airway obstruction."
And it is completely safe to use:
"The negative pressure generated by the force of the suction is 3 times greater than the highest recorded abdominal thrusts. The LifeVac is capable of generating over 300 mmHg of suction. The duration of suction is minimal so LifeVac is safe and effective. No prescription required."
Here is how it works:
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