Abstract: An apparatus for use within a controlled environment, the apparatus having an enclosure, an air filter, and an air flow generator. The enclosure includes an interior region for receiving an article and performing contaminant generating operations. The air filter receives contaminated air from the enclosure and outputs air substantially free of contaminants. The air flow generator can be sealably disposed between the enclosure and the air filter for establishing an air flow into the enclosure interior region from the controlled environment and out of the air filter into the controlled environment.