Disclosed herein is a container for holding a burnable coil bearing an active ingredient, such as an insecticide, insect repellant, deodorizer, or fragrance. The container includes a base having a raised coil support for mounting the coil and a spiral recess or spirally arrayed support peaks which permit air circulation beneath the coil and inhibit premature snuffing. The coil is enclosed by a cover having a downwardly depending hold-down aligned with the coil support to prevent the coil from moving in the container. The cover also has openings allowing air to pass into the container and vapors to be released. The cover is rotatably mounted to the base so that the cover openings can be selectively opened and closed to allow controlled venting and snuffing of the coil.