Americ’s VAF Series air ventilators are designed for most confined space applications. Americ offers 8-inch, 12-inch and 20-inch models for applications ranging from man cooling to hazardous space atmospheres. Manufactured of durable, high-density polyethylene plastic, the VAF Series is portable and lightweight. Power sources range from 110-volt AC, 220-volt AC, 12-volt DC to pneumatic. Cfm ratings range from 848 cfm to 8,000 cfm.