The recommended hour to stay out of your home or a commercial premise is 2-4 hours; it depends on the kind of treatment done. However, you have to consider some important factors- chemicals sprayed, ventilation, effectiveness of the infestation and of course the area treated.
You should always choose Ikari pest control service Singapore for any kind of suggestions and advice. It is strictly advised not to mop, hover and vacuum straight after your place was sprayed to get rid of bed bugs. As soon as you enter your premises air out your property.