A room in which the concentration of airborne particles is controlled, and which is constructed and used in a manner to minimise the introduction, generation, and retention of particles inside the room and in which, other relevant parameters, e.g., temperature, humidity, and pressure, are controlled as necessary, is called a Clean Room. This is a precise description of Clean Room.

Clean room for industrial segment

The cleanroom is a modern phenomenon. Although the roots of cleanroom design and management go back for more than 100 years. Need for a clean environment for industrial manufacturing is a requirement of modern society. Clean rooms are needed because people, production machinery and the building structure generate contamination. As will be discussed later, people and machinery produce millions of particles, and conventional building materials can easily break up. A cleanroom controls this dispersion and allows manufacturing to be carried out in a clean environment.

A major user of clean rooms is the semiconductor fabrication industry, where processors are produced for use in computers, cars and other machines. Micro particles can cause an electrical short circuit and ruin the semiconductor. To minimise contamination problems, semiconductors are manufactured in clean rooms with very high standards of cleanliness.

Clean room for hospitals

The table shows manufacturers who require the absence of micro-organisms, as their growth in a product (or in a hospital patient) could lead to human infection. The healthcare industry is a major user of cleanrooms, as micro-organisms or dirt must not be injected or infused into patients through their products. Hospital operating rooms also use cleanroom technology to minimise wound infection.

What is cleanroom technology?

As can be seen now, cleanroom technology can be divided into three broad areas. These areas can also be seen to parallel the use of the technology as the cleanroom user moves from firstly deciding to purchase a room to finally operating it.

Two types of clean rooms are popular

1) Conventionally Ventilated
2) Unidirectional Flow Type

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