Safety Basics · Lesson 12 of 14

Housekeeping and fire safety

Clean sites prevent slips, trips and fires.

Please read: this free course is general education only. It is not a certification, it does not replace your employer's site-specific training, and it does not give you Working at Heights, WHMIS, First Aid or any other ticket — see the safety tickets guide.

Updated: Oct 2026.

Good housekeeping isn't just tidiness. It means keeping work areas neat and orderly, keeping floors and walkways free of slip and trip hazards, and removing waste and other fire hazards.

Housekeeping habits

  • Keep order throughout the workday, not just at the end of it.
  • Keep floors, stairs and walkways free of loose objects and other trip hazards.
  • Clean up spilled oil and other liquids at once.
  • Remove waste such as paper and cardboard from work areas.
  • Don't let stored materials block aisles, stairs, exits or fire equipment.
  • Stack materials on a firm foundation so they can't shift.

Fire extinguisher classes

Fire classes and what they involve
ClassFires involving
AOrdinary combustibles: paper, wood, cloth, rubber, plastics
BFlammable liquids and gases, oil, paints, lacquer
CEnergized (live) electrical equipment, such as motors, appliances and power tools
DCombustible metals such as magnesium, titanium, sodium and potassium
KCooking oils and fats in cooking appliances

Extinguishers are marked with the classes they're meant for (for example, ABC). To use one, remember PASS: Pull, Aim, Squeeze, Sweep.

Only fight a fire if you've been trained, you have the right type of extinguisher and you're confident you can do it safely. Otherwise, pull the fire alarm, get out and call the fire department.

Key takeaways

  • Housekeeping prevents slips, trips and fires.
  • Don't let materials block exits, stairs or fire equipment.
  • Match the extinguisher class to the fire; use PASS.
  • If in doubt, get out and call for help.

Check yourself

A quick self-check. Your answers stay in your browser: nothing is saved or sent anywhere, and it isn't a test for a certificate.

1. Which class of fire involves live electrical equipment?
2. What does PASS stand for?
3. You're not sure you can put out a fire safely. What should you do?

Sources

  1. CCOHS — Workplace housekeeping (opens in a new tab)
  2. CCOHS — Portable fire extinguishers (opens in a new tab)