@marsiposa
if you choose to use a glue with toxic fumes, may I suggest a simple box fan, and a cardboard box taped to it to form a "booth" on the intake side of the fan. basically the contraption is sucking the fumes away from your son and blowing them away from him. his breathing space stays clean air. do it outdoors and if theres wind have the fan blow the same direction as prevailing wind.