What It Means
Mixing cleaning products means putting two or more cleaners together, on purpose or by accident, in the same container, bucket, toilet bowl or small space. Some combinations react and release gases that hurt the eyes, nose, throat and lungs. Poison Control names the two best-known pairs: bleachChlorine bleachHousehold bleach made with sodium hypochlorite that whitens, removes stains and disinfects, but can fade colors and damage some fibers. See more with ammonia gives off chloramine, and bleach with an acid gives off chlorine. CDC's advice is simpler still: household bleach never goes in with any other cleaner or disinfectant.
Try It: Which Pair Makes Which Gas?
Pick an answer for each pair. The answers come from Poison Control and CDC.
CDC's rule covers every pair: bleach goes in with no other cleaner at all.
How It Sounds at Home
- "Don't pour that in, there's still bleach in the bowl."
- "Open a window, it smells like a pool in here."
- "One cleaner at a time, please."
The Breakdown
Pairs that give off gas (Poison Control)
| Mixed with bleach | Gas released | What it does |
|---|---|---|
| Ammonia or a cleaner containing it | Chloramine | Burning nose, sore throat, coughing; more severe for people with asthma or COPD |
| An acid, including vinegar | Chlorine | Irritating fumes that can cause serious breathing problems |
| An acid toilet bowl cleaner | Chlorine | CDC's MMWR describes people poisoned by exactly this mix |
How often to check, every time you clean
| When | What to do |
|---|---|
| Each time you reach for bleach | Use it alone. CDC says it never goes in with another cleaner or disinfectant. |
| Each time you switch toilet cleaners | Take out any in-tank cleaner and flush first, as the American Cleaning Institute advises. |
| Each time you open a new product | Read its label and follow it. |
Keep it from happening between cleanings. Store each cleaner in its own original bottle so nobody pours from an unmarked one. Buhata's own suggestion: finish one product, rinse the surface with water, and only then start the next.
Good to Know
If someone breathes fumes from a mix, Poison Control says to get them to fresh air right away and open doors and windows to air out the room. Then call Poison Help at 1-800-222-1222, which Poison Control describes as free, confidential and open 24 hours a day. Poison Control notes that people exposed to a lot of chloramine, or who have lung conditions such as asthma or COPD, may need a medical check. If someone collapses, has trouble breathing or can't be woken, call 911.
FAQ
Is it safe to mix bleach and vinegar?
No. Vinegar is an acid, and Poison Control warns that bleach mixed with an acid releases chlorine gas.
What happens if you mix bleach and ammonia?
The mix gives off chloramine gas, which Poison Control says causes throat irritation, a burning nose and coughing. People with asthma or COPD can have more severe symptoms.
What should I do if I mixed cleaners by accident?
Leave the room for fresh air and open the doors and windows. Call Poison Help at 1-800-222-1222 for advice, or 911 if anyone is struggling to breathe.
Do It in Buhata
Household Notes
Write "Bleach never goes in with another cleaner" and the Poison Help number in Household Notes so everyone in the Space can see it.
Open BuhataRelated Terms and Categories
- Chlorine bleach
Household bleach made with sodium hypochlorite that whitens, removes stains and disinfects, but can fade colors and damage some fibers.
- Vinegar cleaning
Using white vinegar, a mild acetic acid, to dissolve mineral buildup and lift grime. It doesn't replace a registered disinfectant.
- Under-sink organization
Arranging the cabinet under a kitchen or bathroom sink so cleaners stay in their original containers, locked away from children and easy to check for leaks.
- Toilet ring
A stained line inside a toilet bowl at the water level. A mineral ring from hard water needs an acidic cleaner, since bleach won't lift it.
- Bathroom deep clean
A top-to-bottom bathroom cleaning that reaches grout, tub, toilet, floor and fixtures. The ACI's routine puts it every two weeks.
Sources
Poison Control (poison.org), "Cleaning Products" and "Top tips for a safe spring cleaning"; CDC, "Cleaning and Disinfecting with Bleach" and "How to Safely Clean and Sanitize with Bleach"; CDC MMWR, "Chlorine Gas Toxicity from Mixture of Bleach with Other Cleaning Products, California"; American Cleaning Institute, "Bathroom Cleaning Tips"
- www.poison.org/poison-prevention-by-substances/cleaning-products
- www.poison.org/articles/spring-cleaning
- www.cdc.gov/hygiene/about/cleaning-and-disinfecting-with-bleach.html
- www.cdc.gov/natural-disasters/safety/how-to-safely-clean-and-sanitize-with-bleach.html
- www.cdc.gov/mmwr/preview/mmwrhtml/00015111.htm
- www.cleaninginstitute.org/cleaning-tips/clean-home/room-room/bathroom-cleaning-tips
Last updated .