Jimmy Buffitt, Shine Shop, etc, have used this method with great and easy success.
First mixe 4 oz of the Odor Terminator into a quart of mixed all purpose cleaner, and clean the complete area, getting it throughly wet with the solution.
Follow up by using a wet vac to remove as much of the wet solution as possible, follow that up by "towel blotting" of the cleaned area in order to soak up what more you can.
Then, mist throughly, the area with the Odor Terminator, getting it slightly wet with the OT.
The previous washing has moved some of the product completely down into the carpet and pad.
Re-wetting with the un-diluted Odor Terminator, allows it to follow the dampness down to any vomit/protien source that the bacteria which are creating the vomit odor are feeding on.
In less than an hour (often 1/2 an hour) the odor is competely gone.
The odor causing bacteria have died due to not having a food source.
The product is 100% no-toxic to humans or pets, and the only odor may be a slight clorine odor for a few minutes. (that odor is not from the product, but from the water used to clean the area)
Grumpy