A fogger?
Egg tubs do a wonderful job at holding the humidity in the tub, I'm not sure why you'd want to change something that works 100% perfect already.
With the substratless method you add the perlite, water, egg crate into a locking lid tub and a few tiny holes for ventilation and done.
No need to mess with foggers or press n seal, just place in the inc and basically forget about them until they hatch.
Occasionally I have to add a 1/2 of a cup of water towards the end of incubating, around 45 days, and that's it.
It's just too easy IMO to do it any other way, especially if you are just learning, it's almost foolproof![]()