My thoughts about how to make proper faceshield ventilation.
Blower (green) takes the air from top of helmet and inject it into pipe, positioned around faceshield.
The pipe has holes directed to faceshield, that gives antifog effect and supply enough air to breath for helmet wearer
This scheme is not my invention - I saw such a thing on jet fighter pilot helmets
For better understanding of this scheme, download eDrawings 3D (MSWindows) interactive model THERE
ZIP password: masterchief
(Press on the picture to enlarge)
What do you think?
Blower (green) takes the air from top of helmet and inject it into pipe, positioned around faceshield.
The pipe has holes directed to faceshield, that gives antifog effect and supply enough air to breath for helmet wearer
This scheme is not my invention - I saw such a thing on jet fighter pilot helmets
For better understanding of this scheme, download eDrawings 3D (MSWindows) interactive model THERE
ZIP password: masterchief
(Press on the picture to enlarge)
What do you think?