Abstract: A safety air valve of a receiving bag includes an upper valve body, a valve seat and a valve gate. The upper valve body is installed inside the receiving bag. A first thread is formed at the protrusion stayed closely to the interior of the receiving bag. The first thread penetrates out the receiving bag; and a first main air channel is formed in the bottom of the first thread penetrating into the receiving bag so as to form a stepped valve opening on the top of the first main air channel. A second thread is formed at the valve seat corresponding to the first thread of the upper valve body. The second thread is screwed into the first thread and is positioned at the outer side of the receiving bag. The second thread has a press body corresponding to a first main air channel of the upper valve body.

Abstract: A clothes storage bag permitting the stacking of clothes in standing position is comprised of two side plastic films and a base plastic film; both side films defining an erected storage case on the upper part; a zipper sealing being provided to an opening at the top of the erected storage case; the lower part of each erected film laterally extending in opposite directions to form a lateral storage case connecting through the erected storage case; and a passage to expel air being provided on either side of the lateral storage case to reduce bag size.

Abstract: An exhaust valve used in a plastic bag for exhaust of air out of the plastic bag is disclosed to include a valve body, a valve flap directly fastened to the valve body to block the valve gap defined in the valve body, and a cap capped on an upright top stub tube of the valve body to hold the valve flap in place. When the suction nozzle of a vacuum cleaner/air suction device is attached to the cap and the vacuum cleaner/air suction device is started, the air suction force causes the valve flap to open the valve gate so that inside air is drawn out of the plastic bag. When the vacuum cleaner/air suction device is turned off, the valve flap is forced by the atmospheric pressure to close the valve gap again.

Abstract: A safety air valve of a receiving bag includes an upper valve body, a valve seat and a valve gate. The upper valve body is installed inside the receiving bag. A first thread is formed at the protrusion stayed closely to the interior of the receiving bag. The first thread penetrates out the receiving bag; and a first main air channel is formed in the bottom of the first thread penetrating into the receiving bag so as to form a stepped valve opening on the top of the first main air channel. A second thread is formed at the valve seat corresponding to the first thread of the upper valve body. The second thread is screwed into the first thread and is positioned at the outer side of the receiving bag. The second thread has a press body corresponding to a first main air channel of the upper valve body.

Abstract: A clothes storage bag permitting the stacking of clothes in standing position is comprised of two side plastic films and a base plastic film; both side films defining an erected storage case on the upper part; a zipper sealing being provided to an opening at the top of the erected storage case; the lower part of each erected film laterally extending in opposite directions to form a lateral storage case connecting through the erected storage case; and a passage to expel air being provided on either side of the lateral storage case to reduce bag size.

Abstract: An air suction valve for storage bag includes a body, a flat valve, a control knob and a lid; the body containing an air duct, a port below the air duct to be closed by the plate valve; the control knob being provided on the plate valve to engage longitudinal displacement to control the plate valve to descend to shut off or to ascend to open up; the lid in relation to the air duct being adapted to the control knob and provided with a air suction port; and an assembly gap being formed to the air suction port to connect through the atmosphere.

Abstract: An air suction valve for storage bag includes a body, a flat valve, a control knob and a lid; the body containing an air duct, a port below the air duct to be closed by the plate valve; the control knob being provided on the plate valve to engage longitudinal displacement to control the plate valve to descend to shut off or to ascend to open up; the lid in relation to the air duct being adapted to the control knob and provided with a air suction port; and an assembly gap being formed to the air suction port to connect through the atmosphere.

Abstract: A medical waste sealing bag having an opening and at least one via holes at predetermined positions; high efficiency filtering material being attached on the via hole and in an inner side of the sealing bag. The high efficiency filtering material is selected from HEPA high efficiency particulate air filer or ULPA ultra-low penetration air filter. The sealing of the sealing bag to the high efficiency filtering material is achieved by heat pressure sealing edges or glue on. A predetermined position of the sealing bag is cut with a via hole. The high efficiency filtering material contains a layer of activate carbon filtering material.