Designed to maintain a constant level of hydrogen gas mix in your COY Anaerobic Chamber, the Automatic Gas Injection System frees the operator from the worry of not enough Hydrogen to maintain the anaerobic environment. This system also eliminates the need to purge the Anaerobic Chamber manually every week, and alleviates concern for the chamber environment over a long weekend. The system accomplishes this by injecting the gas mix into your chamber for a fixed time period on a fixed time schedule. Both of these time periods are adjustable by the customer to suit the chamber activity and size. May be purchased as an option with the original order or added later by the customer to existing Anaerobic Chamber.