YAKOS65 Vent-Filtration® Box allows you to filter out chemical vapors inside of a safety cabinet and returns clean air back to the workplace via a unique standalone system. Built-in an excellent energy efficiency brushless DC blower and widely used filters for most of solvents and chemical. It serves as an air purification system for most of chemical safety cabinet on the market. Effectively reduce the concentration of chemical solvent vapors inside the cabinet and provide the best protection for laboratory personnel.