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Changes to Step #9

Edit by Guy Kuo

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[title] Configuration for Full PAPR
[* green] A fan draws room air through an anesthesia viral filter to fill the halo bag. Full mobility is possible with a 12 volt battery pack.
[* black] Fan power isPrototype with 60 mm 2 watt tubaxial fan has limited and measures are needed toair flow. To enhance airflow volume and routing. TWOrouting, two expiratory valves are a mustsuggested. You may need tocan also add short, corrugated tubinginside halo to better route airflow and reduce fogging.
[* icon_note] I have successfully worn this configuration for several hours walking around my hospital and even roundingrounded on patients. You can be mobile, but definitely cannot move fast.
[* icon_note] AAbout to trial a higher power, 51 mm blower style fan is a reasonable upgrade to the design. Ifoption instead of 60 mm tubaxial fan. With sufficient airflow increase, expiratory viral filters could also be added to removeobviate need for surgical mask. However, present configuration with 2 watt fan is insufficient airflow for that.
[* black] Fan power isPrototype with 60 mm 2 watt tubaxial fan has limited and measures are needed toair flow. To enhance airflow volume and routing. TWOrouting, two expiratory valves are a mustsuggested. You may need tocan also add short, corrugated tubinginside halo to better route airflow and reduce fogging.
[* icon_note] I have successfully worn this configuration for several hours walking around my hospital and even roundingrounded on patients. You can be mobile, but definitely cannot move fast.
[* icon_note] AAbout to trial a higher power, 51 mm blower style fan is a reasonable upgrade to the design. Ifoption instead of 60 mm tubaxial fan. With sufficient airflow increase, expiratory viral filters could also be added to removeobviate need for surgical mask. However, present configuration with 2 watt fan is insufficient airflow for that.