Design and evaluation of a portable negative pressure hood with HEPA filtration to protect health care workers treating patients with transmissible respiratory infections.

Am J Infect Control · 2020 · PMC7320700 · PMID 32603849

Europe PMC DOI

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clearly significantlyno p-value reported

The penetration is clearly significantly reduced via application of active suction, both at half blower power and full blower power.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.