Personal Air Filter

摘要

A personal air filter device with an air filter assembly retained in the air filter holding member is disclosed. An ear support member is attached to the air filter holding member and can be hung over the ear of the user to support the air filter holding member. Alternatively, a clip member attached to the air filter holding member can be utilized to attach the device to the user's clothing or accessories. An air tube assembly extends from the air filter holding member to the mouthpiece for the purpose of breathing filtered air flowing through the air filter assembly. An air intake check valve situated near the end of the air tube attached to a mouthpiece retaining member and an air outflow check valve situated near the outer surface of the mouthpiece retaining member to ensure exhaled air is directed out of the device and is not reinhaled.

主权项

1. A personal respiratory device comprising:
an air filter assembly with filter media; an air filter holding member; an air tube coupled to the air filter holding member; a breathing orifice interface connected to the end of the air tube which is opposite the air filter holding member; at least one air intake check valve; at least one air outflow check valve; and a member that connects the personal respiratory device to a user's person; wherein said air intake check valve and said air outflow check valve are capable of insuring the breathing in of filtered air and that air expelled from the user's lungs exits the device and does not flow back into the air tube; said breathing orifice interface is capable of being inserted into said user's breathing orifice for the purpose of breathing filtered air flowing through said air tube wherein such filtered air has passed through the filter media located in the air filter holding member.