Hydrogen peroxide sterilizers are mainly divided into two categories: atomized hydrogen peroxide sterilizers and vaporized hydrogen peroxide sterilizers. From the level of intelligence, a hydrogen peroxide sterilizer robot that can walk automatically is extended. This article mainly introduces the advantages and disadvantages of these types of equipment for everyone to discuss and exchange.

  1. Atomized hydrogen peroxide sterilizer

Principle: Use low-concentration hydrogen peroxide disinfectant below 8%, atomized particle size below 10μm, and bounce back when encountering obstacles in the space through Brownian motion, and spread to all corners of the sterilization space to fully disinfect.

Advantages: good diffusion effect; low concentration of disinfectant is not a hazardous chemical, easy to store; good compatibility (corrosion) (even if it is dewed for dozens of times, there will be no visible corrosion to the naked eye).

Disadvantages: It is impossible to penetrate high-efficiency filters or sterilize pipelines; it is easy to condense, and a thin layer of water mist may condense on the ground.

  1. Vaporizing hydrogen peroxide sterilizer
    Principle: Flash evaporation, 30%~35% pure hydrogen peroxide disinfectant is heated by a heating plate into a gas and diffuses into the space in the form of gas molecules.

Advantages: gas particles are nano-scale, more evenly distributed and pervasive, can pass through efficiently, and can perform independent pipeline cycle sterilization on small cavities such as biological safety cabinets, isolators, and centrifuges.

Disadvantages: The diffusion capacity is limited. For large space sterilization or long diffusion distance, a fan needs to be added to assist diffusion; the concentration of the disinfectant is high, and if the temperature and humidity of the sterilization area are not well controlled, condensation will result, which is highly corrosive.

  1. Hydrogen peroxide sterilizer robot
    Advantages: The robot can automatically walk and avoid obstacles according to the planned route, so that the disinfectant can spread to all corners without disinfecting corners, and can automatically return to the charging pile for charging.

Disadvantages: Due to the automatic walking, the power consumption is high, the battery life is poor, and it needs to be charged frequently. If the sterilization area needs to be completed in a time beyond the battery life, it is not recommended to use it. And if the layout of the sterilization area changes and the walking route changes, it is necessary to adjust the route frequently to ensure the sterilization effect.

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