In order for something to burn, three elements must be present simultaneously
In order for something to burn, three elements must be present simultaneously.
These three elements are:
• combustible material
Fire is a process that requires that a combustible material is subjected to sufficient heat and has access to oxygen. To illustrate how these three elements are dependent on one another, we can put them together in a triangle, which we call the fire triangle.
To extinguish a fire, one or more of the sides of the triangle must be removed. In other words, one must either remove the combustible material, lower the temperature or reduce access to oxygen.
What is smoke?
Smoke is a product of fire. What the smoke contains depends on what is burning, temperature and oxygen supply. Generally speaking, we can say that smoke is composed of exhaust gases, soot, air and water vapour. Smoke can be very toxic.