Glass cleaners, multipurpose cleaners, bathroom cleaners, polishing waxes, and some drain and oven cleaners contain ammonia. If used in large quantities in poorly ventilated spaces, these cleaners can create dangerous fumes harmful to children.
Mostly household cleaners
Because many household cleaners are corrosive - or give off harmful vapours.
Many household cleaners contain ammonia.
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Some household cleaners contain solvents that dissolve stains. Other cleaners may contain detergents and solvents that bleach away stains and spills.
Some household cleaners can cause serious injuries and even death if ingested.
Ammonia, soap, and household cleaners
Yes! Chemicals of all kinds are dangerous for all animals, including cats. Use extreme care when cleaning with chemicals in a household where there are pets.
YES SURE OFCOURSE
There are many examples of natural household cleaners. These include vinegar to cut through grease and mildew and baking soda to remove odors and limescale among others.
That is dangerous. Don't do it.