Personnel Misting Unit (PMU) cont'd

Air blow-off chambers, as previously noted, do not ensure the containment of the airborne particulate and the establishment of a routine whereby two people may mist each other using hand held sprays, while possible, is not practical. Contact with water mist prevents

Used for the containment and decontamination of airborne particles of hazardous material.
Panic Stop & Sequence Indicator Lights. Misting Nozzles

the migration of any powdered pathogens and in doing so any airborne particulate is caught by the mist or remains deposited on the disposable one-piece suit, which is then discarded upon leaving the PMU area. The primary concern with any hand misting operation is that there is no guarantee that all places have or will be misted with water.

PMU Operating Features

Misting unit to contain any hazardous particulates of an airborne nature.
PMU Mist Shown With Door Open
Fog generated in 2-3sec and
dispersed just as quickly.

1 -The PMU booth is not a shower but a contained “mist” or fog in which the occupant is enveloped
2 - The space available for the booth will typically be about 48" square inside and form part of a sealed barrier wall requiring an entrance and exit door through this booth as the transition from the work area to the de-gowning area.
3 - There are several operating sequences required, requiring safety interlocks. PLC Programming ensures that under no circumstances can the personnel leave a work area without passing through the booth and the misting sequence.
4 - The misting sequence requires that water be atomized so fine as to become an all encompassing fog enabling water to remain airborne and envelop every surface of the occupants protective clothing.

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