BD GasPak™ EZ Systems offer waterless, catalyst-free convenience for use in producing anaerobic, microaerophilic, or CO2-enriched environments. The GasPak EZ Systems are available in non-breakable, chemical resistant containers or one-step resealable pouches. The original BBL™ GasPak™ Plus systems are activated by the addition of water. They feature a safety shielded integral catalyst strip on each envelope and are placed inside a GasPak 100 or GasPak 150 Jar when used. The GasPak Pouch and CampyPouch are self-contained systems which, after the addition of water, will produce an anaerobic or microaerophilic atmosphere suitable for the cultivation of anaerobic or microaerophilic organisms. This heat-free technology minimizes condensate and thus allows excellent bacterial colony visualization though the pouch. GasPak Disposable Anaerobic and CO2 Indicators are available to provide reliable methods for assuring ideal anaerobic and CO2 enriched environments are achieved.