Mould in air conditioning vents

Thanks for the great suggestions. The evaporator and coils were checked and cleaned by a service man yesterday He said there was no moisture or mold. I'll try the Lysol. We cleaned all the air intake vents and thoroughly washed the filters before replacing yesterday. The repairman suggested we have Stanley Steemer clean out the air ducts, but when I called them they said they do not have the equipment. I am nervous about not locating the mold (if there is any) before we head north for the summer. Again, thanks for the replies.
The Wife