It’s not uncommon for multiple cleaning chemicals to be stored in the same household, but next time you tackle a stubborn stain, avoid combining these.
"Certain products, which are safe when used alone, can sometimes cause unsafe fumes or other chemical reactions when mixed with other products," Nancy Bock, Senior VP of Education at the American Cleaning Institute told Good Housekeeping.
Bleach and ammonia. Combining the two causes a toxic gas called chloramine
Vinegar and bleach. A go-to for many, but vinegar should never be mixed with bleach. Doing so will produce toxic chlorine and chloramine vapours.
Rubbing alcohol and bleach. This combination produces Chloroform. Read more here.