- The Class II B2 biological safety cabinet uses efficient ULPA main filter and HEPA exhaust filter. Their filtration efficiency reaches 99.999%. - The air filtered is 100% exhausted. - The adoption of self adjusting motor technology contributes to reduced cabinet vibration. - The monolithic shell guarantees leak-proof biological safety cabinet construction. - The cabinet uses double wall and the work area is surrounded by negative pressure, thereby preventing samples from leakage. - The laminated safety glass provides great protection against explosion, breakage and UV. - The predefined working height of the window is 20cm±5mm. - Quiet operation of Class II B2 biological safety cabinets results in a comfortable working environment. - All of our Class II A2 biological safety cabinets are KI-Discus tested on a sampling basis for performance consistency. - The ergonomically angled window is sloped at 10° for better comfort. - The Class II B2 biological safety cabinet has 3 independent openings for water, vacuum and gas tap.