A disposal unit can include a substantially air tight chamber, an insertion component for inserting waste into the chamber, a disposal container for removing the inserted waste from the disposal unit, a container sealant mechanism configured to allow a sealing of the disposal container, and an air extraction unit. The air extraction unit captures air or airborne particles from the substantially air tight chamber to minimize exposure to the air or the airborne particles from the inserted waste. The exposure to the air or airborne particles is minimized to humans placing the waste into the insertion component, to humans removing the disposal container from the disposal unit, or to humans proximate to the disposal unit.
