1, the principle is different
Water-based fire extinguishers can form a layer of water film on the surface of burning objects, isolate oxygen, play the role of cooling and isolation, and achieve the purpose of rapid fire extinguishing. Dry powder fire extinguishers rely on dry powder falling on the surface of combustible materials and isolating oxygen to extinguish the fire.
2. Different grades
1a water-based fire extinguishers are used for solid fire extinguishing, and dry powder fire extinguishers are used for Class A and Class B fire extinguishing.
3. Different prices
The price of water-based fire extinguishers is higher than that of dry powder fire extinguishers.
4. Different pollution levels
Water-based fire extinguishers will not pollute the fire scene, and dry powder fire extinguishers will pollute the fire scene.
Second, the best place to put out the fire with a fire extinguisher
1, which direction the wind passes, the fire will be put out.
2. The distance from the fire source is about1.5-3m, so as to ensure that the fire extinguisher can be sprayed on the burning substance to effectively extinguish the fire.
3. There should be no inflammable, explosive and dangerous goods around the fire.