Do not breathe the fumes. Open doors and windows wide. Start artificial respiration if the person is not breathing, and send for an ambulance or a doctor. Phone the poison control centre for first aid advice. Do not attempt any additional first aid until you have instructions from the poison control centre.
Potential poisons are everywhere.
Check every room in your house. Know which products are poisonous, and know where they are. Take your children with you and teach them what products are harmful. No list is ever complete.