Approximately 30 minutes of continuous smoke or 60 smoke tests of 30 seconds
Does not contain any hazardous or harmful substances
Environmentally friendly
For Testing of: Air Drafts, Smoke Detectors, Air Flow Patterns, Fireplaces and Chimneys
To Use:
1. Remove red plastic cap from pen top
2. Leave approx. 10mm (1/3") outside top of pen holder. (10mm is equal to 2-3 minutes of smoke)
3. Light top of smoke stick and let it burn on open flame for 10-15 seconds. Blow out flame, smoke stick will now release a stable and smooth smoke string.
4. To extinguish smoke stick just place plastic cap on top of the pen holder, smoke stick will go out immediately.