Objective To observe the efficacy of hydrogen peroxide plasma low-temperature sterilization device in sterilization of imitative clinical luminal devices so as to provide reference evidences for clinical practice.

Objective To restrain proliferation of Legionella pneumophila using the set of removing alga and bacterium by destroying its microecoenvironment and provide guide for establishing the way that can control proliferation and propagation of Legionella pneumopila for a long time and no negative effect on environment.