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Changes to Bunny Science™ PAPR Introduction

Edit by Guy Kuo

Edit approved by Guy Kuo

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Introduction
Bunny Science HALO Respirator design by Guy Kuo, MD [ … ] The COVID-19 pandemic has created severe shortages of protective airway equipment. Providers are forced to forego adequate personal protection due to dwindling PAPR, CAPR, and N95 mask supply. Masks that should be single use are being ad-hoc sterilized and reused. [ … ] It is in response to this emergent need, that I have released the ''Bunny Science HALO PAPR''. [ … ] The Halo is intended to achieve protection by keeping the users entire head in a positive pressure, clean gas environment. Its disposables are easily found.. [ … ] 3D parts files can be downloaded from... https://www.thingiverse.com/thing:4243272 or https://www.prusaprinters.org/prints/27657-halo-buildable-papr-powered-air-purifying-respirat [ … ] Video Intro https://www.youtube.com/watch?v=MvbcmaCIgKk [ … ] this respiratory. ''Although respirator. BS Halo repurposes an FDA approved ventilator filter to provide clean breathing air. Because it is powered, user need not work to pull air through filter. Positive pressure seal works without requiring perfect fitment. [ ] PAPR has been leak tested against micro-aerosolized threat using same aerosols as N95 mask fit testing. To simulate worst case test conditions, test aerosol was directed at air intake, exhausts, and neck seal. EtCO2 and pulse saturation monitoring of user over several hours were also performed. [ ] ''Although the physics are sound, sound and the device merely expands application of known good, approved viral filter, the Bunny Science Halo PAPR is not yet a regulatory approved device. Use of this Halo respirator is at ''your your sole discretion and risk''.'' risk.'' [ … ] Project is released under Creative Commons Attribution-NonCommercial-NoDerivs CC BY-NC-ND. [ … ] Bunny Science is the explorations arm of Kuo Software, LLC [ … ] Art Credit: Generic human head model by John Brown.
Bunny Science HALO Respirator design by Guy Kuo, MD [ … ] The COVID-19 pandemic has created severe shortages of protective airway equipment. Providers are forced to forego adequate personal protection due to dwindling PAPR, CAPR, and N95 mask supply. Masks that should be single use are being ad-hoc sterilized and reused. [ … ] It is in response to this emergent need, that I have released the ''Bunny Science HALO PAPR''. [ … ] The Halo is intended to achieve protection by keeping the users entire head in a positive pressure, clean gas environment. Its disposables are easily found.. [ … ] 3D parts files can be downloaded from... https://www.thingiverse.com/thing:4243272 or https://www.prusaprinters.org/prints/27657-halo-buildable-papr-powered-air-purifying-respirat [ … ] Video Intro https://www.youtube.com/watch?v=MvbcmaCIgKk [ … ] this respiratory. ''Although respirator. BS Halo repurposes an FDA approved ventilator filter to provide clean breathing air. Because it is powered, user need not work to pull air through filter. Positive pressure seal works without requiring perfect fitment. [ ] PAPR has been leak tested against micro-aerosolized threat using same aerosols as N95 mask fit testing. To simulate worst case test conditions, test aerosol was directed at air intake, exhausts, and neck seal. EtCO2 and pulse saturation monitoring of user over several hours were also performed. [ ] ''Although the physics are sound, sound and the device merely expands application of known good, approved viral filter, the Bunny Science Halo PAPR is not yet a regulatory approved device. Use of this Halo respirator is at ''your your sole discretion and risk''.'' risk.'' [ … ] Project is released under Creative Commons Attribution-NonCommercial-NoDerivs CC BY-NC-ND. [ … ] Bunny Science is the explorations arm of Kuo Software, LLC [ … ] Art Credit: Generic human head model by John Brown.