Be safe with these tips from the American Society for Surgery of the Hand and the American Academy of Orthopedic Surgeons:
•If the blower jams, turn it off
•Keep your hands away from the moving parts
•Do not drink alcohol and use the snow blower
•Be aware of the carbon monoxide risk of running a snow blower in an enclosed space
•Refuel your snow blower when it is off, never when it is running