1.Water-based fire extinguishers can damage electrical circuits, which can increase losses. Moreover, water-based fire extinguishers are not effective in extinguishing fires when exposed to oil. Therefore, it is recommended that riders use dry chemical fire extinguishers in the car, and the characteristics of dry chemical fire extinguishers may be very good. In the summer, it is the time of high incidence of spontaneous combustion of vehicles, and it may be necessary to put a fire extinguisher on the car. Cars** generally start from the engine compartment. Water-based fire extinguishers have a short service life, only 6 years, while dry powder fire extinguishers and carbon dioxide fire extinguishers are mostly 8-12 years old
2. The scope of use is small, and the water-based type is mainly used to extinguish the initial disaster accidents of solid or non-water-soluble liquids, and cannot be used for books, precision instruments, and household appliances
3. Heavy weight, water-based fire extinguisher is equipped with AFFF water film-forming foam fire extinguishing agent and nitrogen, which is heavier than carbon dioxide fire extinguisher. Carbon dioxide fire extinguishing agent is a kind of fire extinguishing agent with a history of more than 100 years, with high quality and low price, and it is very easy to obtain and prepare, which mainly relies on the suffocation effect and part of the cooling effect to extinguish the fire. Carbon dioxide has a high density, about 1 of that of air5 times. Scope of application of carbon dioxide fire extinguisher: carbon dioxide fire extinguisher has excellent characteristics such as good fluidity, high spray rate, non-erosion of containers and not easy to deteriorate, and is used to extinguish the initial disaster accidents of books, archives, precious machinery and equipment, precision instruments, electrical equipment below 600 volts and oil. It is mainly used to extinguish Class B fires, such as kerosene, diesel, methanol, ethanol, asphalt, paraffin and other fire accidents. Suitable for extinguishing Class C fires (such as gas, natural gas, methane, ethane, propane, hydrogen and other fire accidents. Fire extinguishing class E fire accidents (fire accidents in which objects are burned with electricity).