If conditions allow, from where is it best to discharge the extinguishing agent?

Discharging the extinguishing agent upwind is the most effective approach because it allows the operator to use the wind direction to their advantage. When positioned upwind, the extinguishing agent is carried towards the flames by the wind, increasing its effectiveness while minimizing the risk of exposure to heat and smoke. This positioning also helps maintain the operator's safety by reducing the chance of being overwhelmed by the fire's intensity or hazardous emissions.

In contrast, discharging from the side or behind the flames may expose the operator to hazards and reduce the efficacy of the agent due to wind interference. Similarly, discharging downwind would mean that the extinguishing agent could be blown away from the fire, decreasing its potential to effectively suppress the flames.