There are several types of bleach, but the use of chlorine bleach is likely what you are inquiring about. Here is a quote from the Housekeeping Channel at: www.housekeepingchannel.com.
"Use bleach only in well-ventilated areas. Take a break in the fresh air at the first sign of any irritation from chloride vapors; wear eye protection and a face mask if necessary. Those fumes hint strongly that ... — Lynn E Krafft, ICAN/ATEX editor