The problem with hydrogen peroxide is that you have to make direct contact (wet down) the items in question. I have some experience with Lysol in a disinfection environment and it contains a substance with persistent and fumigant like properties such that simply being in an enclosed area with it, is highly germicidal. The alcohol in it is largely just a quick evaporating carrier.
Dilute food grade hydrogen peroxide to 3%, use a dark brown bottle and attach a sprayer that produces a fine mist.
If I you can find an ozone generator (+/- $200 on Amazon) you can use it to disinfect things and places My reading says it’s effective (though there are some who don’t agree)
In any case do NOT breathe the gas it gives off. Just let it dissipate.