Survival guides · First Aid & Health

Disinfect Surfaces

WHEN TO USE THISLiving close together, or someone is sick. Plain household bleach is the best tool you have.

1. Mix bleach and water

   • Regular, unscented bleach.
   • Everyday: 1 tablespoon per gallon of water.
   • Sickness or heavy contamination: ⅓ cup per gallon.
   • Mix fresh every day — it weakens within 24 hours.

2. Clean first

   • Wipe off dirt, food and grime with soap and water first.
   • Bleach disinfects; it doesn't clean. Dirt blocks it.

3. Wet it, wait, wipe

   • Spray or wipe it on. Leave it at least 1 minute.
   • Door handles, switches, shared tools: several times a day.
   • Focus on food prep, the bathroom, and anything a sick person touched.

Sources: CDC Cleaning and Disinfecting Guidelines · EPA Registered Disinfectant Information

General information to help in an emergency — not a substitute for training or professional care.