With the right maintenance and care, blow lamps, can last a long time. Here are a few cleaning and maintenance tips:
Storage
Blow lamps need to be stored at temperatures between 10°C (50°F) and 40°C (104°F). To avoid their temperature moving outside of these parameters, they must be stored away from direct sunlight.
It needs to be stored at this temperature to ensure that there is no pressure build-up within the gas canister which could potentially cause it to burst.
Cleaning
To clean the outside of the blow lamp, wipe off any dirt using a clean damp cloth with a small amount of detergent.