A leaf and lawn vacuum bagger has a housing that is attached to the exhaust outlet of a conventional leaf and lawn blower/vacuum or mulching device, and an air permeable bag releasably connected to the exhaust outlet has a fastener closure at a bottom end. A flexible sleeve is secured at one end to the housing and the air permeable bag is releasably connected at the opposed end for capturing the vacuumed yard debris. A closure member attached to the housing is selectively closed to allow exhaust gases from the lawn blower/vacuum or mulcher device to exit through the pores of the air permeable bag to the atmosphere, and leaves and yard debris exhausted through the blower/vacuum or mulcher falls down through the interior of said air permeable bag, through said sleeve, and are collected in the housing interior, and when opened, the collected leaves and yard debris falls through the housing and into the attached disposable bag, and the attached bag is then removed and replaced as needed.