5 Chemical Combinations Cleaners Should Never Mix

Every year, working cleaners are hospitalized due to accidental chemical reactions in enclosed vacation rental bathrooms. Mixing household cleaners does not create a 'super cleaner'—it creates toxic gases.

1. Bleach + Ammonia = Toxic Chloramine Gas

• Common culprit: Spraying Windex (ammonia) into a toilet bowl that has Clorox or Tilex (bleach).
• Result: Produces chloramine gas, which causes acute chest pain, coughing, and chemical pneumonia.

2. Bleach + Acids = Lethal Chlorine Gas

• Common culprit: Using Bar Keepers Friend (oxalic acid) or vinegar alongside Soft Scrub or Tilex (chlorine bleach).
• Result: Releases green-yellow chlorine gas, which causes severe pulmonary burns even in small doses.

3. Bleach + Rubbing Alcohol = Chloroform

• Common culprit: Combining disinfectant alcohol sprays with bleach bathroom wipes.
• Result: Synthesizes chloroform and hydrochloric acid, causing dizziness and loss of consciousness.

4. Hydrogen Peroxide + Vinegar = Peracetic Acid

• Common culprit: DIY green cleaners attempting multi-step sanitation.
• Result: Forms peracetic acid, a corrosive chemical that irritates eyes, skin, and mucosal tissues.

5. Multiple Drain Cleaners

• Result: Mixing acid and caustic lye drain chemicals generates explosive exothermic boiling that splashes back into cleaners' eyes.