A waste container apparatus includes a waste container having an opening exposing an inner space thereof and configured to move between a containing position and a disposal position, a lid covering the opening of the waste container in the containing position and configured to uncover the opening when the waste container moves from the containing position, and a deodorizing unit providing a deodorizing substance to the inner space of the waste container when the waste container moves from and returns to the containing position.
An air decontamination apparatus for a common HVAC system includes a plurality of venturi holes. The plurality of venturi holes are configured to be positioned in the common HVAC system for forcing airflow in the common HVAC system through the plurality of venturi holes. Each of the plurality of venturi holes including an antimicrobial coating. Wherein, the air decontamination apparatus is configured to kill bacteria and viruses in the airflow in the common HVAC system via the antimicrobial coating on each of the plurality of venturi holes.