Leak test adaptor apparatus for facilitating leak testing face mask respirators

An apparatus for leak-testing a face mask having an exhaust port and a filter receptacle attached thereto, the apparatus connected to the face mask, comprising:

• (a) an outer member having a proximal end and a distal end, said outer member having a bore therethrough extending from the proximal end to the distal end of said outer member, the bore having a first end near the distal end and a second end near the proximal end of said outer member, said outer member connected to the face mask and spaced-apart from the exhaust port;
• (b) an inner member matingly disposed in the bore near the first end of the bore, said inner member having a recess for matingly sealingly receiving a filter therein, said inner member having a channel therethrough having an inlet opening in communication with the recess and a outlet opening in communication with the bore, the channel defining a flow path for a gas or an aerosol flowing through the channel and out the outlet opening of the channel;
• (c) means connected to said inner member for regulating the flow of the gas or aerosol through the channel;
• and
• (d) a sampling port formed through said outer member, said sampling port in communication with the bore for sampling the gas or aerosol in the bore, said sampling port having an obstruction-free passageway therethrough for passage of the gas or aerosol.

An apparatus for leak-testing a face mask respirator when worn on the face of a wearer, the face mask respirator having an exhaust port and a filter receptacle connected thereto, comprising:

• (a) a generally cylindrical outer member having a proximal end and a distal end, said outer member having a generally cylindrical bore therethrough extending from the proximal end to the distal end of said outer member, the bore having a first end terminating at the distal end of said outer member and a second end terminating at the proximal end of said outer member, said outer member connected to the face mask respirator and spaced-apart from the exhaust port;
• (b) a generally cylindrical inner member matingly disposed in the bore near the first end of the bore, said inner member having a generally cylindrical filter recess in one end thereof for matingly sealingly receiving a filter assembly therein capable of filtering a gas or aerosol therethrough, said inner member having a generally cylindrical channel for flow of the gas or aerosol therethrough, the channel having a substantially circular inlet opening at one end thereof in communication with the recess and a substantially circular outlet opening at the other end thereof in communication with the bore, the channel defining a flow path for the gas or aerosol flowing through the channel and out the outlet opening of the channel;
• (c) means connected to said inner member for regulating the flow of the gas or aerosol through the channel;
• and
• (d) a hollow generally cylindrical sampling port laterally extending through said outer member, said sampling port in communication with the bore for withdrawing the gas or aerosol from the bore, said sampling port having an obstruction-free passageway therethrough for passage of the gas or aerosol.