Importance

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Abstract

An entranceway to an asbestos contaminated work area includes solid doors for a rapid escape from a contaminated work area due to an emergency such as a fire and the danger posed by exposure to smoke. Also during a power failure it is easy for the workers to leave the work area. The immediate exiting from the work area is thereby greatly facilitated by the solid swinging doors. Each of the doors have a transparent portion through which the work area or an adjacent chamber of a decontamination chamber may be observed. The doors further include an air inlet having at least one flexible plastic flap covering the inlet which allows suitable amounts of air to flow through the inlet to maintain a negative air pressure in the work area while the air in the work area is changed at least every 10 to 15 minutes. The plastic flaps of the doorway seal automatically upon loss of negative air pressure in the work area.

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First Claim