What is fire extinguisher? Mentions its types.

Explanation

### Step-by-Step Text Solution:

1. **Definition of Fire Extinguisher**:
A fire extinguisher is a portable device designed to extinguish or control small fires. It contains an agent that can suppress fire, allowing individuals to put out a fire before it spreads or to assist in the evacuation process.

2. **Purpose of Fire Extinguisher**:
The primary purpose of a fire extinguisher is to provide a quick response to small fires, preventing them from escalating into larger, uncontrollable blazes. Fire extinguishers are essential safety equipment in homes, workplaces, and public areas.

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