Purifier Logic Class II Biosafety Cabinets include an LCD information center located inside the cabinet at eye-level to keep users safe and alerted to current cabinet conditions, including the percent of filter capacity remaining. Intelligent motor technology is utilized to maintain safe airflow as the filters load. The motor is more powerful and quiet, runs cool, and is energy efficient. Programmable options permit users to define start-up, shut-down and standby parameters, including blower control and timing of fluorescent and UV lights. The cabinets are available in three, four, five and six-foot benchtop models and carry NSF, NSF International, ETL listings, and CE conformity marking.