[title] Sealed, Positive Pressure Protection
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[* red] Plastic bag completely encloses head |
[* green] Comfortable, yet effective seal around neck with personal utility strap. |
[* light_blue] Expiration is via one way valved ports. System is kept under positive pressure. In actual usage, the valves rarely actually need to close. |
[* icon_caution] Warning: Do not seal bag until fresh gas inflow and expiratory ports are present. |
[* icon_note] Photo shows older configuration with expiratory guide tubing and lower performance fan. With current blower fan configuration, expiratory guide tubing is no longer needed.
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