Abstract: A combustion apparatus includes a combustion chamber, an air chamber, an air supply, an air supply inlet, and an air supply outlet. The combustion chamber may hold a combustible substance within the air chamber. After the substance is ignited, the air chamber may be closed and pressurized to direct the substance through the combustion chamber and out of the air chamber for ingestion by a user. The apparatus facilitates controlled combustion, consumption, and exhaust of a substance. The apparatus further permits self-contained collection of waste and byproducts that may be generated during combustion of a substance.