What are some dangers of clorox bleach fumes?

Minimal: Your body will tell you when too much is too much. While some people can tolerate a lot, some people are highly sensitive and their bodies react at very low levels. Read the warnings on the label: "do not use in small or confined areas; insure adequate ventilation, etc". Of course extreme exposure can cause a chemical bronchitis or pneumonitis which is more serious. So if it stings, avoid it.

Fumes: As any noxious fumes ,in excess, it can causes irritation of the lining of the respiratory system including, nose ,sinuses, trachea and lungs. Good Luck