A fire extinguisher is a must in any home or office. Everybody should take preventive methods against fire. Fire safety refers to precautions taken to prevent or reduce the fire. In houses and offices, there is a chance to spread fire through electric wire shortening or through some other reasons. Nowadays, every offices and houses take fire safety devices such as fire extinguisher. A fire extinguisher is an active fire protection device used to control fires in emergency situations. They are fitted on the wall of the buildings. There are also grenade-like extinguishers in the market. There are two main types of fire extinguishers such as stored pressure and cartridge-operated. Stored pressure fire extinguishers are the most common type.