Processes of an environmentally sensitive nature require clean rooms that can keep air contaminants out of the workspace. The manufacturing of microprocessors, the biological research of cultures, and the study of minerals found in space involve extremely sensitive processes that could be ruined by the slightest contamination. Keeping this in mind, workers are required to wear special suits with hoods, gloves, goggles, and masks in order to keep contaminants out of the clean room. They also are required to pass through air showers in order to remove any environmental contaminants. The clean rooms themselves are fitted with powerful filters that keep much of the contaminants out of the room. They can also feature anti-static ion dischargers that can prevent static electricity build up. So it’s pretty apparent that clean room facilities need to be kept free of contaminants.
In addition to all this, workers often employ special cleaning methods and materials to thoroughly clean these clean room facilities to ensure maximum sterility and non-contamination. Below are some examples of these methods and materials.
There are various cleaning liquids and chemicals used to clean countertops and things of that nature, such as distilled water and isopropyl alcohol. There are also brooms used with special polypropylene-coated heads that can be used to clean up floors; these heads will not build up bacteria that could contaminate the clean room. Special mops are used as well, such as sticky head mops, which can come in the form of flat heads or rollers, which can pick up particles to be removed from the clean room. Sponge mops and non-woven mops can also be used to absorb particles and liquids during clean up.
Other sorts of rollers can be used to clean equipment and counter tops along with special wipers that can clean up particles and liquids without breaking up and producing more contamination. Squeegees can also be used for liquids. Though clean room filters can remove much of the air particulates, workers and scientists can often track more materials into the room, which can settle on equipment and counters, making it more difficult to remove with air filtration alone. And there can be spills that need to be cleaned as well.
Workers who pose the danger of tracking in particles with their shoes can use shoe cleaners that function like golf shoe cleaners, or they can put shoe coverings on before entering the clean room in order to ensure even more cleanliness.
Finally, special industrial strength vacuum cleaners can be used for whatever particles escape the cleaning process. These vacuum cleaners are especially engineered to avoid dumping exhaust, so that the process is as clean as possible. All of these techniques serve to keep clean rooms as clean as possible.