A: VHP Passbox sterilizes at very low temperatures using vaporized hydrogen peroxide, not like regular steam sterilization that requires superior warmth. New sterile air or nitrogen is circulated immediately after decontamination. The H₂O�?vapor breaks down into h2o and oxygen, reducing residual stages to under 1 ppm—Risk-free for operator entry. https://vhpsterilizationequipment34296.eqnextwiki.com/5612179/biological_indicators_for_vhp_sterilization_fundamentals_explained