The first paragraphs
The human body is the largest source of mobile pollution in a clean area: The pollution source comes from the body's own surface, all the harmful substances that can be emitted or shed by the wearable equipment, and the harmful substances contained in the gas exhaled by the human body (coughing, sneezing).
There are two main categories:
1. Organic harmful substances: bacteria, viruses, dander, hair, human secretions, etc. carried by the human body.
2. Inorganic harmful substances: clothing microfibers, dust particles (elements: potassium, chlorine, phosphorus, sodium, calcium, carbon, nitrogen, sulfur, iron, titanium, aluminum)
Example: Statistics on the types of bacteria in the clean room
The Second paragraphs
Goals to be achieved by human body cleansing protective equipment:
1.Prevent the particles or fibers produced by the clean clothes and other equipment from being brought into the clean area or aseptic area with the clean personnel due to material and production process problems.
2.Prevent clean personnel from bringing clean equipment contaminated by the outside into the clean area or aseptic area.
3.Prevent viruses, bacteria or other harmful micro-particles from the surface of the cleansers' bodies, and micro-pollutants in the exhaled air from penetrating the outer surface of clean clothes and other equipment to invade the clean area.
4.Prevent harmful substances in the controlled environment from injuring the personal safety and health of clean personnel by penetrating the barriers of clean clothing and other equipment.
The Third paragraphs
The configuration method of human body clean protection equipment:
1.Clean personnel wear equipment including: clean bags, tops, pants, or coveralls, masks, clean shoes, work hats, protective goggles, protective gloves, etc.
2.Different industries or different levels of clean areas need to be equipped with different configurations of clean equipment:
1) D-level areas or areas with lower cleanliness levels, with hats, coats, trousers, shoes, masks, gloves, etc.
2) A/ In areas with high cleanliness levels such as Class B and C clean areas (Class 10, Class 100, Class 1000), it is generally necessary to wrap the entire body with one-piece caps, masks, goggles, gloves, high-tube shoes, etc. among them, the high cleanliness The protective equipment worn by the cleansers in the high-level area should not have exposed body parts. The quality requirements of human body clean protection equipment:
1.Clean work clothes and other supporting products require that their materials are free of fiber shedding, no balling, uninterrupted silk, permanent anti-static, non-adhesive particles, and good filtering performance.
2. It is resistant to aging, washing, abrasion and has good resistance to high temperature, humidity and heat sterilization; all items to be sterilized must withstand disinfection and sterilization at a high temperature of 121°C.
3. The fabric should be soft, comfortable and breathable (under the premise that it is not dust-proof).
4. In addition to the style that meets the requirements of the corresponding clean area configuration, the details require no pockets, no belts, tight seams, smooth texture, and elastic cuffs and trousers (depending on the configuration).
The Fourth paragraphs
Wear the human body clean and protective equipment correctly:
1.The appropriate equipment size should be selected for each person to wear to ensure that it is close to the body, comfortable and easy to operate at work.
2.According to the requirements of different industries and regions, formulate corresponding SOP rules for changing clothes, and strictly operate and manage in strict accordance with the changing procedures.
3.Clean personnel should try to avoid large movements or operations during the production operation, their hands should not be crossed on their chests, and they should not lean on any objects including walls.
The Fifth paragraphs
Properly manage human body cleansing protective equipment:
1. Work clothes should be numbered and dedicated for special use. To prevent cross-contamination, they should not be mixed.
2. Formulate correct equipment cleaning and sterilization procedures, including cleaning frequency, time, sterilization frequency and time, and make compliance records. Clean clothes that are damaged, defibered, or have reached the end of their service life, should be scrapped in time.
3.Each shift is cleaned, dried, folded and put into their own clean clothes bag or underwear bag in the laundry room of the corresponding clean area. If sterilization is required, sterilize the clean bag together with the equipment on the inside. After cleaning and sterilizing, put it in the wardrobe in the specified area for storage for easy access.
4.Clean equipment used in different regional levels shall be cleaned, dried, sterilized and stored separately, and marked to ensure that no cross contamination occurs.
5.The clean clothes and equipment after cleaning and sterilization should be used within the valid period of the verification, otherwise they need to be re-sterilized before they can be used. The clean clothes after sterilization should be regularly checked for bacteria and recorded.
6.Use purified water or water for injection to clean, and add a proper proportion of special cleaning agent, the cleaning agent is a non-ionic surfactant.
