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Animats
on April 8, 2017
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Shenzhen is a hothouse of innovation
I have this cheap one.[1] It doesn't work. The "squeeze the rubber bladder to get vacuum" approach doesn't provide enough suction. Ones with a powered air pump might work, but cost much more.
[1]
https://www.amazon.com/gp/product/B01CCHFWL0
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[1] https://www.amazon.com/gp/product/B01CCHFWL0