At least two even strokes of the plunger of the hand duster held in
each of the positions will deliver a total of about two ounces of louse powder to each
individual being dusted.
In this manner, the delousing teams can disinfest from 150 to 250
persons per hour.
(2) Power dusters. Gasoline engine driven delousing outfits may be used to
dust 600 or more persons per hour by momentarily releasing the trigger of the dust gun
held in the same positions as the hand duster.