
For vehicle-mounted fire extinguishers in cars, dry powder and water-based fire extinguishers are highly recommended. Dry powder fire extinguishers have fast fire suppression and low cost, but they are polluting and corrosive. Water-based fire extinguishers can extinguish all types of fires except Class D metal fires. They are pollution-free, harmless to humans, and particularly effective for extinguishing Class B liquid fires, making them especially suitable for engine and car fires. The characteristics of dry powder and water-based fire extinguishers are as follows: Dry Powder Fire Extinguisher: 1. The dry powder extinguishing agent has good chemical stability and can be stored for a long time; 2. Fast fire suppression speed, quickly covering and isolating air to extinguish fires; 3. Compared to water-based fire extinguishers, dry powder extinguishers can extinguish Class C gas fires; 4. More suitable for use in low-temperature environments than water-based fire extinguishers; operating temperature range is -20℃ to 55℃; 5. After use, the dry powder residue needs to be cleaned up. Water-Based Fire Extinguisher: 1. Healthy, non-toxic, and harmless, easy to clean, and can be sprayed directly on the body to aid in escaping a fire; 2. Good permeability and adhesion, strong fire resistance, and can quickly lower temperatures; 3. Suitable for the early stages of fires where fire suppression requirements are not high, easy to use; 4. Can extinguish Class ABEF fires; 5. Operating temperature range is 5℃ to 55℃, not suitable for use in low-temperature areas; 6. No cleanup required after use, naturally degrades.

Having worked in the auto repair industry for so many years, I recommend keeping a dry powder fire extinguisher in your car—it's especially effective for vehicle fires. Car fires often involve oil or electrical circuits, and dry powder can extinguish Class A, B, and C fires, including engine grease fires, whereas water-based extinguishers may conduct electricity when in contact with electrical components, posing greater risks. Remember to check the pressure gauge and expiration date, and store it in an easily accessible spot in the cabin. In case of a fire, stay calm, pull the safety pin first, then spray. If you opt for a water-based extinguisher, cleanup is easier, but it's only suitable for solid fires and impractical for cars with many electrical components—safety-wise, dry powder is still the top choice.

As an average car owner who prioritizes practicality and safety, a dry powder fire extinguisher is the better choice. It has a wide range of applications and is effective against engine oil fires or electrical short circuits. Water-based extinguishers, when used near in-car wiring, may accidentally conduct electricity and exacerbate the fire. A small, inexpensive dry powder model is sufficient—keep it in the glove box or by the door as a backup, and don't forget to regularly check its expiration date. Compared to water-based extinguishers, dry powder may leave some dust residue that needs cleaning, but this minor inconvenience is worth it for the ability to quickly extinguish small fires and save lives in case of a driving emergency.

I prefer healthy and eco-friendly options, but a dry powder fire extinguisher is still a wise choice for the car. Its residual powder may be harmful if inhaled or difficult to clean up, while water-based extinguishers are indeed cleaner and more environmentally friendly. However, electrical fires are common in vehicles, making water-based options potentially hazardous. After weighing the pros and cons, I accept the drawbacks of dry powder extinguishers because they are multifunctional and reliable, capable of handling oil or electrical fires in emergencies. It's recommended to keep one near the spare tire, avoiding direct sunlight to ensure safety.

Considering cost and efficiency, I'd go with a dry powder fire extinguisher for better value. Dry powder extinguishers are affordable and easy to purchase, with a shelf life of over three years. Maintenance is simple—just shake it periodically for inspection. Water-based extinguishers might be more expensive, bulkier, and require special care to prevent freezing and cracking. In case of a small fire in the car, dry powder works instantly, saving both money and hassle. Don't opt for water-based ones just for their cleaning advantage—it's not suitable for car environments. Prioritize dry powder for investment security and driving safety.


