| [title] Configuration of PAPR with Fan |
| [* green] A fan draws room air through an anesthesia viral filter to fill the hood bag. Full mobility is possible with a 12 volt battery pack. |
| [* black] 51 mm blower fan with 200 pascal static pressure yields about ideal flow. 150 pascal static pressure capacity is probable minimum that allows unencumbered activity. |
| [* icon_caution] Always verify your Bunny Science PAPR maintains positive to neutral pressure during inspiration. Bag should freely move inward about 1 cm during inspiration. Never modify design to stent bag open. Stenting bag open risks generating negative pressure. |
| [* icon_note] 51 mm blower fan provides adequate air clearance and permits walking and stair climbing. I have spent hours in the Bunny PAPR with gas sample monitoring to verify flow adequacy.
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