Urea formaldehyde - This chemical is usually associated with respiratory problems such as: difficulty breathing, burning sensation in throat, wheezing and coughing, and nose irritations. However, there are other health effects such as fatigue, skin rash, sever allergic reactions and watery eyes. In homes whether the concentration of urea formaldehyde is very high there is an increased risk of cancer. Bleach - The most common health effects from bleach are irritation of the skin, eyes and throat. If bleach is in direct contact with skin it can cause skin irritation, burning and damage. I f inhaled bleach can cause damage to lungs and organs, and respiratory problems such as coughing, wheezing and lightheadedness. Bleach should also not be consumed as it is consider to be extremely toxic. Both of these chemicals are common in houses and should be handled with caution. Bleach is a very common cleaning product that many people deem as safe. Howev...