Abstract: A portable vacuum and air filtration unit, comprising: a plurality of separately transportable modules and a means for locking the modules together during use, an air inlet located in one of the modules, a debris screen and a means for receiving debris stopped by the screen located in one of the modules, an electrostatic filter located in one of the modules, a bag filter assembly located in one of the modules, a HEPA filter assembly located in one of the modules, and a means for drawing a substantial volume of air through the inlet, screen, electrostatic filter, bag filter assembly and HEPA filter assembly.

Abstract: This specification discloses a manually operated portion packaging apparatus including an operating handle initiating and actuating each step in a sequence of steps to complete packaging of a portion of a substance such as food. A hand operated handle advances a conveyor carrying containers, causes a film dispenser to dispense sufficient amount of heat sealable film, causes a heated platen to press on a container covered by the film, and actuates a food dispenser and container dispenser. Manually powering such a machine reduces the cost in comparison to electrical powering yet substantially increases efficiency in comparison to manual execution of each step in the portion packaging sequence.