Today’s isolators are decontaminated largely with hydrogen peroxide delivered as possibly a gas or possibly a condensing vapour based on the style of generator selected. Chlorine dioxide is also utilised, but is not really that typical. That's why isolators are mostly sanitized applying hydrogen peroxide vapor (a surface disinfectant). https://medium.com/@tailinscitech/applications-and-benefits-of-tailin-containment-isolator-for-handling-high-potency-materials-8c66a55dbcf7