The AllVac vacuum truck from Vacall Industries uses a twin cyclone filtration design that ensures wet, dry and fine materials are separated to create clean air. A single engine controls the chassis and vacuum system, and an air cannon cleaning system operates continually, resetting after every cycle. A hinged twin-cyclone top door offers access to ductwork for easy decontamination and a fail-safe tailgate design opens, closes and locks with one control. Oversized dump chutes allow materials to flow freely, and a safety prop allows engagement of the body prop by one person. 800/382-8302; www.vacall.com.