Floors and walls have large surface areas and must therefore need wiping cloths and techniques designed for thorough sterilisation.
Cleanroom environments are unlike any other. They come with challenges and requirements that are specific to their construction, classification, and purpose. Not only do you and your cleaning crew need to have a thorough understanding of the regulations specific to the controlled environment, but so does everyone who enters the room. You need to establish a clear set of rules to follow to limit the amount of particulate in the room, the disruption of particles, and general contamination.
Cleanroom doors are an important part of a cleanroom because they are responsible for sealing the controlled environment. If they do not work properly, the clean room will be at higher risk of contamination.
Some of the same requirements for a controlled environment (also known as a critical environment) are the same for a cleanroom - they just don’t go as far.
When you’re looking at developing and building a critical environment you have to consider that the area needs to be segregated, so therefore you have to build it separately. It also has to maintain temperature control, so it will require an insulated panel. Finally it has to maintain pressurization so that you can keep the outside environment from getting in.
Let us compare the numbers of airborne particle or micro organism in cleanroom with our surrounding environment. The numbers of particles in general environment vary from time to time so that any fixed number cannot be determined, but roughly classified as shown in the diagram to the right. From this figure, you will see that such a clean condition in the highest class cleanroom cannot be found in the natural world, even in the upper area of stratosphere. Also, in the center of Pacific Ocean, the cleanliness level of the air is lower than that of middle class of cleanroom. In other words, cleanroom is an ultra clean space where airborne particles or micro organism are been eliminated, as we can never experience in our normal environment.
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