A bloodmobile is a mobile blood donation center. It is a vehicle (usually a bus or a large van) equipped with everything necessary for a blood donation procedure. Blood drives involving bloodmobiles usually happen in public places such as colleges and churches.
Many times large employers will sponsor mobile blood drives and allow employees a few hours off of work to donate blood. In addition, many high schools hold annual blood drives which allow students aged 16 and over to donate blood with a signed permission form. Typically students are offered snacks, T-shirts, or time out of class as an incentive, as well as positive peer-pressure.