There are dangerous combination that release toxic gases, which makes them a real health threat, especially in regard to your lungs and brain.
1# Bleach and ammonia
The result from this combination is formation of toxic fumes, mostly chloramines, it can cause a great harm to the eyes and this combination should never be inhaled.
2# Chlorine bleach and vinegar
When an acid come in combination with chlorine is very dangerous especially the case with vinegar. The reason for such occurrence is the toxic chlorine gas that it releases.
3# Baking soda and vinegar
Maybe you’ve heard that this combination is good for cleaning, but its simply not worth it. It is very dangerous and you should avoid it at any cost.
The baking soda or sodium bicarbonate reacts with acetic acid, which is found in vinegar, and produces sodium acetate, water, and carbon dioxide as a result. In addition, vinegar triggers bubbling in baking soda, which can even result in explosion if the two are mixed in a closed container.
4# Rubbing alcohol and bleach
The fact is that when chloroform and hydrochloric acid are rubbed together is very dangerous.
5# Hydrogen peroxide and vinegar
Again this is the case that some people endanger their health, just for cleaning purposes. When combine formation of peracetic acid occur it can cause injuries on the skin eyes as well as respiratory system.
6# Two different cleaners
This is the most popular misconception people do. For example a window cleaner and some universal cleaner, combination like this can be quite dangerous and we must know that chemicals are very dangerous and whenever we use them we should never mix them and be extra precaution.