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A comment on Open-source “pandemic ventilator”. Parent comment

Re:Open-source “pandemic ventilator” by viklove on Saturday February 29, 2020 @07:15PM (#22454190)
What would the battery be for?
[ Parent | on HN ]
Re:Open-source “pandemic ventilator” by lukevp on Saturday February 29, 2020 @07:22PM (#22454222)
To power some type of air pressurization system so that it’s not my lungs that are pressurizing the air, this is because filtering the air requires additional pressure to force the air through the filter.
[ Parent | on HN ]