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Cleaning products not to mix

Bleach with ammonia or acids, and what to do if it goes wrong.

Cleaning products you must not mix
Can I mixwith?
BleachAmmonia!

Never mix these. Makes chloramine gas: coughing, chest pain, shortness of breath, and in a closed room it can injure the lungs. Many glass cleaners contain ammonia, and so does urine, which is why bleach in an unflushed toilet or a litter tray can give off fumes.

  1. Read the whole label first. The signal word tells you how hazardous it is: DANGER is the most, then WARNING, then CAUTION.
  2. Air: open a window and run a fan blowing out.
  3. Gloves and splash goggles for bleach, drain and oven cleaners.
  4. One product at a time. Rinse with water before using the next.
  5. Keep it in its own container, never a drink bottle, and out of children's reach.

If it went wrong

Get everyone into fresh air and leave the room. In the US, call Poison Help on 1-800-222-1222; call 911 if anyone has trouble breathing, collapses or has a seizure. On skin or in the eyes: rinse with running water for 15 to 20 minutes.

Safety

  • Never mix cleaning products, even ones that seem mild.
  • This list is not complete and products change: the label and the maker's Safety Data Sheet are the authority.
  • If anyone has trouble breathing, call 911 or your local emergency number.

General information, not professional advice: your manual and local rules come first. You use this at your own risk; see our Terms.

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