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[title] Configuration for HALO Fan HALO (PAPR)
[title] Configuration for HALO Fan HALO (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] Prototype with 60 mm 2 watt tubaxial fan has limited air flow. To enhance airflow volume and routing, two expiratory valves mayor twin viral filters may be needed. However, verify that your fan maintains positive pressure with two expiratory valves even during inspiration. You can optionally add short, corrugated inside halo to better route airflow and reduce fogging.
[* icon_caution] If two expiratory filters are used, verify your HALO maintains positive pressure even during inspiration.

[* icon_note] I have successfully worn thisthe single filter/60 mm fan configuration for several hours walking around my hospital andhospital, even roundedrounding on patients. YouOne can be mobile, but definitely cannot move fast.
[* icon_note] About
fast due to trial a higher power, 51 mm blower style fan option instead of 60 mm tubaxial fan. With sufficient airflow increase, expiratory viral filters could also be added to obviate need for surgical maskCO2 clearance rate.
[* black] If weight of HALO and fan are uncomfortable supported by just the halo,attach a strap can be stretched acrossstrap spanning top of halo.
[* black] Prototype with 60 mm 2 watt tubaxial fan has limited air flow. To enhance airflow volume and routing, two expiratory valves mayor twin viral filters may be needed. However, verify that your fan maintains positive pressure with two expiratory valves even during inspiration. You can optionally add short, corrugated inside halo to better route airflow and reduce fogging.
[* icon_caution] If two expiratory filters are used, verify your HALO maintains positive pressure even during inspiration.

[* icon_note] I have successfully worn thisthe single filter/60 mm fan configuration for several hours walking around my hospital andhospital, even roundedrounding on patients. YouOne can be mobile, but definitely cannot move fast.
[* icon_note] About
fast due to trial a higher power, 51 mm blower style fan option instead of 60 mm tubaxial fan. With sufficient airflow increase, expiratory viral filters could also be added to obviate need for surgical maskCO2 clearance rate.
[* black] If weight of HALO and fan are uncomfortable supported by just the halo,attach a strap can be stretched acrossstrap spanning top of halo.

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