Fire Extinguishers

Select an extinguisher based on the classes of fire you may encounter: Class A (ordinary combustibles), B (flammable liquids), C (electrical), and multipurpose ABC for mixed risks; check the numerical rating (e.g., 2A:10B:C) to match fire size—higher numbers indicate greater extinguishing capacity

For most homes, a 2.5–10 lb ABC extinguisher is typical; workplaces require placement so that no employee is more than 30–75 feet from an extinguisher depending on hazard classification—consult local fire codes for exact coverage and minimum counts

Look for UL/ULC or equivalent third‑party certification, a clearly labeled fire class/rating, a pressure gauge or squeeze gauge indicator, a tamper seal, and instructions; consider mounting brackets, hose/nozzle type, and weight for usability

Residential and small commercial extinguishers commonly range from under $50 for basic small units to a couple hundred dollars for larger or specialty types; budget options are available, but ensure they carry proper certification and an appropriate rating for your needs

Perform monthly visual checks for pressure gauge in range, physical damage, corrosion, nozzle obstruction, and intact tamper seal; have annual professional inspections and periodic maintenance or hydrostatic testing per label and local regulations (typically every 5–12 years depending on type)

Use a Class K extinguisher for commercial cooking grease fires; for small kitchen grease fires at home, a Class ABC can work for early-stage fires but using baking soda or covering the pan is often safer—do not use water on grease fires; Class C-rated extinguishers are appropriate for energized electrical fires

Stored‑pressure extinguishers keep propellant and agent in the same cylinder and are common for general use; cartridge‑operated units separate propellant in a cartridge and are often used for larger-capacity or industrial applications, offering faster discharge and easier servicing in some contexts