käsisammutin

Käsisammutin, often translated as portable fire extinguisher, is a handheld device used to put out or control small fires. It typically consists of a portable pressure vessel containing an extinguishing agent that can be expelled by the force of a pressurized gas. There are various types of käsisammuttimet designed for different classes of fires, such as those involving ordinary combustibles, flammable liquids, or electrical equipment.

The basic operation involves activating the device by pulling a pin or lever, which breaks a seal and allows the extinguishing agent to be released. This agent smothers the fire by cutting off its oxygen supply or by cooling the burning material below its ignition point. Common extinguishing agents include water, foam, dry chemical powder, and carbon dioxide.

Regular inspection and maintenance are crucial to ensure a käsisammutin is functional when needed. Their presence is mandated in many public buildings, vehicles, and workplaces to provide immediate response to incipient fires, potentially preventing them from escalating into larger, more dangerous situations. Proper training on their use is recommended for all individuals who may encounter a fire emergency.