The sweetest plug-on blower in racing just got better! We have redesigned the vibration dampening rubber housing to hug the side of the Helmet closer. Don't worry, it still comes with the same powerful 50 cfm motor which puts out 3 times the amount of our competitions'! The 3M filtrete sock filter actually filters the air you breath, not just the rocks and boulders like the washable filters do. Very popular in road racing, circle track, drag racing, karting. and sprint cars, or carry in your helmet bag for multi use. Never Race without Fresh Air again! Available in Recharchable version for an Extra $40.