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Changes to Step #29

Edit by Guy Kuo

Edit approved by Guy Kuo


Step Lines

[title] Fans Tested
[* icon_reminder] Regardless of Fan HALO limitations, the oxygen HALO configuration '''already''' works well with 12 L/min or higher flow..
[* black] Typical, small tubaxial fans lack sufficient static pressure capability for use in the Fan HALO configuration. We are drawing air in ''through'' a viral filter. Static pressure capability is vital.
[* black] Blower style fan yields much better performance than tubaxials. NMB Technlogies BM5115-04W-B50-L00 blower fan with 3.5 CFM (0.098m³/min), but higher static pressure of 0.803 in H2O (200.0 Pa) provides ample airflow and pressure with a single air intake filter.
[* icon_note] I obtainedused this 51 mm blower from
[* icon_note] I obtainedused this 51 mm blower from
[* icon_caution] PLEASE DO NOT HORDE FANS. Only obtain the number you will actually ''deploy'' to providers.
[* black] Other blower fans may yield more ideal combination of power draw, static pressure, flow rate, noise, and availability, but I am limited in project prototyping budget. 150 to 250 Pa static pressure capability is likely best range.
[* black] These alternative fans are good candidates, but I have not tested them...
[* icon_note]