Sterilizing principle:
Steady formaldehyde gas as a strong alkanisation agent can make bacterium protein, enzyme and active radical of nucleic acid degeneration. It can combine with acid amides of protein molecule to form cross linking to prevent germ from breeding. It forms cross linking with cell wall molecule or form side chain to damage its structural organization and reduce the function of going through to bring about death. 

Applicable range:
●Surgical instrument—catheter, anaesthetic tool, joint mirror, trachea intubate , peritoneoscope and so on.
●Physician instrument—blood oxygenator, moist device, drainage device, injector, respirator, rubber catheter, gloves, parts of high-pressured oxygen device and so on;
●Electric instrument—embedding electrode, electrode of shock eliminator, electric capacity, potentiometer, wire, switch and others. 

Characteristic:
●Sterilizing ability is strong. The organic compound does not affect the sterilizing result.
●It is easy to run through the package to the deep site, especially the pipe.
●It is safe for human being. No remained substance polluting the surrounding.
●Its operation is simple. It has advanced monitoring system.
●Its operation fee is low. The law materials are easy to be bought and stored.