What is a self clean oven
A self clean oven is a standard feature on most ovens and can be a convenient feature. Self clean ovens heat up to temperatures of approximately 900 degrees Fahrenheit (482 degrees Celsius). During this temperature cycle the high heat will burn off spills leftover from baking without the use of chemicals.
One of the most common complaints about using the self clean mode is the obnoxious fumes and smell. The manufacturers recommend opening windows, turning on fans and removing pets and birds while this feature is running. You have to ask yourself “Are these fumes harmful” http://www.ehow.com/info_10012140_fumes-selfcleaning-oven-harmful.html