The hydrogen peroxide disinfectant, also known as hydrogen peroxide, an oxide, can kill a variety of germs, and then with the use of ultraviolet light irradiation disinfection, air disinfection with ultraviolet and ultraviolet light for water disinfection has a long history. Air disinfection equipment used in hospitals, clinics and purification of the room has been practiced for many years. Now, factories, offices and homes are also beginning to use air sterilization equipment.
The use of hydrogen peroxide is divided into medical, military and industrial three kinds of daily disinfection is medical hydrogen peroxide, medical hydrogen peroxide can kill intestinal pathogens, purulent cocci, pathogenic yeast, generally used for object surface disinfection. Hydrogen peroxide has an oxidizing effect, but the concentration of medical hydrogen peroxide is equal to or less than 3%, wipe to the traumatic surface, there will be a burning sensation, the surface is oxidized to white and bubbles, wash with water can be, after 3-5 minutes to restore the original skin color.
The principle of air disinfection is the same as water disinfection. Typically, UV lamps can be installed in the air ducts, at the front of the coils, or mounted on a shelf fixed to the wall. As the air passes through, the airborne microorganisms are killed and rendered harmless. Surface disinfection works on the same principle. In the food and beverage manufacturing industry, products on conveyor belts are sanitized by surface sanitizing equipment.
Ultraviolet light is strong in sterilizing, but weak in penetrating objects. It is suitable for space disinfection in operating rooms, burn wards, infectious disease rooms and sterile rooms as well as for surface disinfection of heat-insensitive objects and countertops.
Expanded Information
Selection of disinfection methods:
In order to make the disinfection work smoothly and achieve better results, it is necessary to choose the appropriate method according to different situations. Generally should consider the above issues.
1, the types of pathogens
Different infectious disease pathogens have their own characteristics, the tolerance of different disinfection methods is different. Such as bacterial germ cells on a variety of disinfection measures of the strongest tolerance, must be sterilized with a strong sterilizing agent, heat or radiation treatment, in order to achieve better results. Therefore, they are generally represented as the most difficult to disinfect. Others, such as Mycobacterium tuberculosis, are sensitive to heat disinfection, while their tolerance to general disinfectants is stronger than other bacteria. Fungal spores are very resistant to ultraviolet light, but are more easily killed by ionizing radiation.
Enteroviruses have a similar tolerance to peroxyacetic acid as bacterial propagules, but quaternary amines are ineffective against it. Botulinum toxin is easily destroyed by alkali, but has a high tolerance for acid. As for other bacterial organisms and viruses, spirochetes, mycoplasma, chlamydia, rickettsiae are poorly tolerant of general disinfection. Common disinfection methods can generally achieve good results.
2, the nature of the object of disinfection
The same disinfection method for different nature of the goods, the effect is often different. On the paint smooth wall, spray liquid is not easy to stay, should be rinsed, wiped as appropriate. On the rougher walls, easy to make the liquid stay, available spray disinfection. Ethylene oxide fumigation, easy to absorb the drug cloth, paper, the effect is better, while the metal surface, shall extend the time.
Feces, sputum disinfection should not be used to coagulate protein drug treatment, because protein coagulation of pathogens can play a protective role, high-pressure steam sterilization effect is good, but should not be used for fur, plastics and synthetic fiber products. Ethylene oxide fumigation celluloid products, high concentrations of peroxyacetic acid or chlorine disinfectants such as bleach soaked cotton fabrics, Lysol solution many times for a long time soaking latex gloves, can cause damage. For food and tableware should not be treated with toxic or foul-smelling disinfectant.
3, disinfection should take into account the local conditions
In indoor disinfection, airtight houses, available fumigation disinfection, airtight poor application of disinfectant wipe or spray. Well-ventilated houses, available ventilation method of disinfection, poor ventilation, contaminated air long-term storage should be fumigated and sprayed with drugs. Densely populated areas can not be sterilized with irritating gas. Close to the fire should not use ethylene oxide and other flammable disinfection.
4, health and epidemic prevention requirements
Different conditions have different chances of transmission, different requirements in epidemic prevention. Infectious disease epidemics, the incidence of serious infected areas, should focus on the application of effective drugs and equipment. Fewer cases of peripheral areas, can use simple disinfection methods. Infectious disease hospitals or wards, patients are concentrated, pollution is serious, the amount of disinfection is large, fixed equipment and efficient measures should be used, the disinfection of the patient's home is a clinical measure, the amount of work is small, simple measures and methods can be used. Drinking water should be boiled on the basis of purification, water for domestic use can be disinfected with chlorine after purification.
For respiratory infectious diseases, emphasize space isolation, ventilation and reasonable with masks, for gastrointestinal diseases should emphasize utensils, feces, vomit disinfection and hand washing after contact. Disinfection of different diseases, should pay attention to differentiation. Viral hepatitis patients, the application of stronger chlorine-containing disinfectant or chlorine human disinfection, should not be applied to quaternary amine salts and Lysol and other general disinfectant treatment.
In the disinfection work must also pay attention to the factors affecting the disinfection, such as the amount of disinfectant (including disinfection of the intensity and duration of action), disinfection of the degree of contamination of the goods, disinfection of the temperature, humidity and pH, the chemical antagonists, the disinfectant's penetrating power and surface tension, and so on.
Hydrogen peroxide disinfection precautions:
1, should not be taken orally, should be placed in a place not easily accessible to children.
2, corrosive effect on metal, use with caution.
3, avoid mixing with alkaline and oxidizing substances.
4. Protect from light and heat and store at room temperature.
5, the expiration date for medical use is generally 2 months.
6, shall not be touched by hand.
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