Barrier to hazardous fumes

BILL SPARKES/Acorn Newspapers

SAFETY FIRST- Ventura County firefighter Mark Frailey dons a protective mask and checks his breathing apparatus Sunday morning before entering the burned-out carcass of a motor home on Drayton Avenue in Thousand Oaks. Work-related carcinogens accumulate in a firefighter's body over the course of a career if proper precautions aren't taken.