Disposable face shield

Publication Date

May 15, 2013

Patent Number

US4944312A

Abstract

<P>PROBLEM TO BE SOLVED: To provide protection equipment, isolation facility and a filter can clean air to feed it to human and clean air exhausted by a person. Ž<P>SOLUTION: This protection equipment is provided with a cover 10 airtightly covering a person's mouth or nose from the outside, and an air cleaner 20 for feeding the cleaned air to the interior of the cover 10 and retaining the interior of the cover at a pressure higher than the outside air, wherein the air cleaner 20 has a suction part 21, a cleaning means 25 and an exhaust part 26. The suction part 21 includes a sealed container 23, an air suction passage 22 connecting the space inside the sealed container 23 to the cover 10, an exhaust passage 23c connecting the space inside the sealed container 23 to the exhaust part 26, and a suction means 24 sealed in the sealed container, sucking the air inside the space and exhausting it to the exhaust passage 23c, and the suction means 24 has a suction port 24a for sucking the air inside the sealed container 23, isolated from one end in the side of the sealed container 23 in the air suction passage 22. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž

Disposable face shield