It is a good idea to monitor your younger children when they first start learning to clean using household chemicals… But more importantly, make sure they know NEVER to mix to chemicals with out checking with an adult. It would be nice to just be able to monitor each time, but you never know when your child might decide to be “helpful” and do some cleaning.
Many years ago, the youngest daughter of friends was cleaning the bathroom and decided to mix two household cleaners, thinking it would do a better job of cleaning.
Certain household cleaning products can create toxic gasses when mixed. In the case above it was bleach & ammonia that was mixed together; And, as you may know, bleach & ammonia creates chlorine gas – A lethal combination. The girl hadn’t meant any harm and was simply trying to be helpful and do a good job. She simply wasn’t aware that the 2 cleaners would create a toxic gas.
(Note: Everything turned out okay and no one was harmed. She did learn a valuable lesson, one she (hopefully) will remember a long time to come)