Effective smoke and particulate removal A modern, light-weight, compact design allowing for simplified use, storage and stack-ability The SF35 Extended-Life Filter offers up to 35 hours of performance reducing procedure cost by ~38% from the previous model, when used at the lowest setting. Covered 3-port filter design accommodates a variety of tubing sizes [1/4″(6.4mm), 3/8″(9.5mm), and 7/8″(22mm)] providing versatility in procedure and accessory setup The ultra-quiet design offers the same excellent performance with less noise 99.999% Efficient Particulate Capture.