Which type of extinguishers are prohibited in California?

Vaporizing liquid extinguishers are prohibited in California due to their potential environmental hazards and the specific fuel types they are designed to combat. These extinguishers, which use liquids that vaporize to create a smothering effect, can be less effective and more dangerous in certain scenarios, especially in situations involving flammable liquids. California regulations prioritize safety and environmental protection, which is why these extinguishers are not permitted for use in most situations.

The other types of extinguishers mentioned, such as water-based, foam, and dry chemical extinguishers, are widely accepted because they have proven effectiveness against various fire classes and are designed with safety considerations in mind. Water-based extinguishers, for example, are effective for Class A fires, while foam extinguishers can address both Class A and Class B fires. Dry chemical extinguishers are versatile and can handle multiple classes of fires as well. Each of these types is regulated for use according to specific fire hazards and environments, which is why they remain permissible under California law.