Hallowell EMC was incorporated in 1988 after the dissolution of Rusz Instruments following the transfer of technology involving the AV500 ventilator to Bear Medical of Riverside California. A simplified version of the AV500 with an extended operating range for veterinary use was partially complete at the time. At Hallowell EMC this project was finished and marketing began with the Model 200 Veterinary Anesthesia Ventilator. The ventilator was repackaged with airway pressure alarms as the current Model 2000. The company has also introduced its AWS Anesthesia WorkStation for animals ranging in size from 150-200gm to 6-7 kg. Hallowell EMC is privately owned and employs nearly 10 people. It is headquartered in Pittsfield, Mass.