What is a clean room?
The clean room is a controlled environment, which has the lowest amount of particles and pollution such as; There is dust, germs and vapors of chemicals in it. In its more detailed description, it should be said; A clean room has a controlled level of contamination per cubic meter of space.
The nature of the clean room is not limited to the control of particles in it. Temperature, humidity and pressure are also measured, evaluated and controlled in a clean room according to established standards.
The clean room is used in various industries to prevent disturbances in the process of laboratory, research and production projects. This widely used technology can be customized and is designed and manufactured in different dimensions according to the desired efficiency and customer’s demands.
Clean room mechanism
The clean room uses advanced materials and equipment to achieve a high level of air quality and environmental cleanliness. In addition to the construction materials of a clean room, many tools and devices are used to ensure its cleanliness.
In fact, the equipment used in a clean room, from the plan, materials and implementation, to the installation of ventilators and hoods and special entry and exit systems; All are designed and implemented in order to protect the desired space from the entry of any particles and environmental pollution.
lass=”yoast-text-mark” />>If every cubic meter of urban air has 35 million particles; This value reaches 0.5 microns in the clean room, which is the lowest possible and approved value in the clean room according to the American ISO 209 standard.
This special feature in the clean room can significantly increase the quality and reliability of testing, research and production. In fact, any process that requires high precision and must be carried out in an environment free of any microbial and bacterial particles is not possible without a clean room.
The main element in improving the air quality of the clean room is the “high efficiency air filter” or the so-called HEPA. This device traps particles with a length of 0.3 microns or larger. The stronger type of this air filter, which is called Ultra Low Particle Air Filter and is called ULPA for short, is also used in clean rooms with very high sensitivity.
Entering and exiting the clean room itself has certain customs and procedures. Before entering the clean room, users pass through an air barrier, take an air shower and are equipped with a special suit.
The clothing for clean room users, which is called antistatic clothing, is different depending on its size and function. This clothing may be limited to a lab coat and cap. But in most cases, the clothing for clean room users consists of a full body and head cover, which has a part for breathing.
Clean room validation
After the implementation and start-up of the clean room and before users and personnel use it, tests are conducted to control the quantities and measure its validity. This process is designed to ensure the ability of the clean room to prevent the penetration of pollutants and microbial and bacterial particles into it.
Clean room microbial testing is done in three ways:
• Microbial measurement of the clean room through plating; In this method, standard plates called Settle Plate with a diameter of 9 cm are used to measure the amount of microbial particles in a cubic meter of air in a clean room.
• Clean room contact microbial assay; The contact microbial measurement of the clean room is performed by contact plates, which are 5.5 cm in diameter and are called contact plates.
• through air sampler; The Air Sampling device measures the microbes present in one cubic meter of air using platforms with a diameter of 9 cm.
Functional equipment in the clean room
A clean room is actually a conventional structure, which is protected against environmental contamination by means of special equipment. The equipment used in the implementation of the clean room is divided into several general categories:
• Air conditioning system equipment in the clean room; The clean room approach has depended this type of technology on the application of advanced filters, including V-shaped compact filters, box filters, filters with aluminum separators, chemical filters, active filters, flow filters, hood terminal filters, and capacity filters. He pointed out the shape of the exhaust fan, the fan filter unit and the gas filter above.
• Clean room control equipment; The task of these parts in the clean room is to measure and control the quantities of temperature, humidity and pressure. The most widely used control parts in the clean room; Temperature sensor, humidity sensor, dehumidifier and pressure sensor.
• Clean room structural equipment; In clean room technology, there are equipments that take the first place in the discussion of clean room construction implementation. The most used of these equipments are: ceiling sandwich panel, wall sandwich panel, floor covering for clean room, flush system clean room door, semi flush system clean room door, DPS, clean room window, room air conditioner. clean, clean room electronic systems and clean room ducting.
• Equipment and tools used in the clean room; After the implementation of the clean room structure, tools and equipment are needed to be placed in it, and here we mention the most important ones; PVC curtain, post box or goods carrier, furniture for clean room, air shower in clean room, weighing chamber, laminar hood, laminar table and antistatic clothes in clean room
Types of rooms
Types of clean rooms are placed in separate categories based on different criteria. These categories are designed according to various factors such as air purity, dimensions, shape of the structure, the way it is set up and things like that.
The most obvious clean room categories are as follows:
Classification
>• Different classes of clean room in terms of air purity; One of the most important classifications of the clean room is divided into several different classes based on the purity of the air inside it. The basis of this classification is the American standard 209.
>According to American standard 209, a clean room with 0.5 microns of particles per cubic meter of air is the first class of clean room and in a simpler sense, it is the cleanest clean room that can be built. The presence of values higher than 0.5 microns in a cubic meter of air form the next classes of the clean room.
• Classification of clean room based on size and dimensions; The clean room can be designed and built in different dimensions and sizes. In fact, the clean room is built according to the size and dimensions of the desired factory, hospital or laboratory, the application of the clean room, as well as the concerns and wishes of the person who ordered the clean room.
>• according to how they are set up and implemented; Clean rooms are divided into several different categories in terms of how they are installed and implemented. For example, a dynamic clean room is a type of this structure that the raw materials for its construction are transferred to the desired factory or center, and after construction and commissioning, various tests are performed to ensure its correct operation in order to deal with the entry of particles. .
static or ready-to-use clean room
>Another type of clean room in terms of setup is a static or ready-to-use clean room, in which the desired structure is built and only the equipment installation stage is not done. Users of such clean rooms are not allowed to enter it until all the equipment is fully operational.
There is another type of clean room, which is called prefabricated or ready-made clean room. These clean rooms are usually available in small sizes and have different uses.
>To order a prefabricated clean room, it is enough to go to the company that supplies it and choose the best among the clean rooms available in different sizes and efficiency based on the quantity and quality you want.
After placing your order, the selected clean room will be moved to the desired location and installed.
What industries and centers need a clean room?
>clean room in any industry where there are more than certain particles; It is used to disrupt the testing, research and production process or to affect it in any way.
>In fact, clean room technology has made various industries advance their goals with a higher quality level, obtain more accurate results from testing and research, and ultimately provide a purer product.
>Industries and centers that widely use clean room technology are: pharmaceutical industries, hospitals, laboratories, research centers, biological and biotechnological industries, electronic industries, medical equipment factories, food industries, biological science research centers. , automobile design and production industries, aerospace industries, optics industries, energy departments, semiconductor industries and military industries
Why do we need a clean room for our business?
In recent years, the use of clean rooms in various industries has grown significantly. The reason for this is the benefits that clean room technology has in producing a product, the accuracy and accuracy of the results of a test or the achievement of a research.
In fact, using a clean room system for a manufacturing or research business is nothing more than scientific and commercial requirements. In the field where a few people together with the industrialists use this technology for the benefit of quality production, high efficiency and economic growth, ignoring it is equivalent to handing over the ball of superiority to the competitors.
