Purifier Class I enclosures protect the user from agents that require biosafety level 1, 2 or 3 containment but no product protection.

• Ergonomic air foil with aerodynamic clean-sweep airflow openings, upper dilution air supply, zone-perforated rear baffle, side-entry air foils and upper containment sash foil
• Nominal inflow velocity of 75 to 105 fpm
• Variable speed built-in blower with vibration-isolated impeller and solid state control rated for 2 amps