An odor removal assembly comprising a flexible bag that, when open, allows a user to place items into the bags interior, and when closed, prevents a user from placing items into the interior of the bag. The bag may include a fastening mechanism for closing the bag. The assembly includes an ozone generator that generates ozone and expels the ozone through a conduit that extends between an outlet of the ozone generator and the interior of the bag. The assembly may also include an ozone destruction catalyst for removing ozone from the interior of the bag. In various embodiments, the odor removal assembly includes an automatic shutoff system for preventing the ozone generator from generating ozone gas if: the ozone level exceeds a pre-determined level outside of the bag, if the ozone level exceeds a pre-determined level within the interior of the bag, and/or if the bag is open.
