cleaned oven but it now smells of bleach,is it safe to use?

yesterday morning my husband cleaned our oven with a bleach based oven cleaner,thought no more of it until early evening when i went to cook the kids dinner and turned the oven on and within 5 minutes it had a very strong smell of the bleach he used (even though it was oven cleaner),left the oven on for a while in the hope the smell went but it didnt so i decided not to use the oven and cooked the dinner on the hob instead.i was worried that the smell of the bleach would get into the food making it taste awful and making everyone ill too,would i be right to be worried? i have left the oven door open all night and this morning i switched it back on to see if it still smells which it does but not as bad but still a strong smell,so i am going to wash it all out with just boiling hot water and see if that helps,any other ideas would be great.many thanks