Clean roominstallation of high efficiency filters

Let's start with something simple: you often hear aboutinstallation of highly efficient filtersin clean rooms as a panacea. And this, of course, is partly true. But many people overlook a number of important points that can significantly affect the efficiency of the entire system. It's not enough to just buy good filters and hang them up - you need to understand *how* to install them, what factors to consider and what problems may arise in practice. We are at ?Tianjin Tongchang Junqi Cleaning Equipment Co.,Ltd? We have been working on this topic for a long time, and we have accumulated considerable experience - both successful and, unfortunately, not very good.

Why do we need high-efficiency filters in cleanrooms at all?

A question that seems obvious, but is worth repeating. Clean rooms, be it a pharmaceutical workshop, laboratory or production site, require strict control of air purity. It’s not just the absence of dust, but the removal of particles of a certain size – that’s what we’re talking about. Traditional filters are certainly useful, but they are not always adequate, especially when it comes to removing microorganisms, viruses or small abrasive particles. This is where they come to the rescuehighly efficient filters (HEPA, ULPA, etc.). They are capable of capturing particles down to 0.3 microns in size with an efficiency of 99.97% or higher. The use of such filters is critical to maintaining sterility and preventing contamination of products or processes.

Don't forget about other pollutants. In addition to particles, the air may contain chemical vapors, odors, bacteria and viruses. Therefore, in some cases, not only HEPA filtration is required, but also adsorption (for example, using activated carbon) or even ionization. The choice of filter depends on the specific cleanliness requirements and the type of contaminants. It is important to consider that different types of filters have different efficiencies and different costs. It often happens that first they try to get by with the cheapest options, and then complain about inefficiency.

Basic mistakes when installing filters

The most common mistake is choosing the wrong filter for a specific room and task. For example, in one case, a HEPA filter of class H13 is sufficient, and in another, a ULPA filter of class U18 is required. Wrong choice leads to reduced system efficiency and, as a result, non-compliance with cleanliness requirements. Sometimes they make mistakes with the filter size. If the filter is too small, it clogs quickly and requires frequent replacement. If the filter is too large, it may take up too much space and create additional problems.

Another common mistake is not installing the filter correctly. The filter should fit snugly into the filter housing and have no gaps through which air can enter. It is also necessary to correctly set the direction of air flow. Improper installation may result in reduced filtration efficiency and equipment damage. By the way, it would be a good idea to allow a small amount of time for installation - nuances are often discovered on site that were not taken into account during the design. For example, we have repeatedly encountered a situation where it turned out that the existing ventilation system was not designed to work with high-density filters.

Ventilation problems and filter selection

Often the problem is not in the filter, but in the ventilation system. If ventilation is poorly designed or not properly maintained, then even the most expensiveHEPA filterwill not be able to provide the necessary air purity. It is important to consider the speed of air flow, the volume of the room and the number of people in the room. Ventilation ducts and equipment should also be cleaned and maintained regularly. Regular replacement of filters in the ventilation system also plays an important role. Do not forget about the need to install pre-filters - they will protect the HEPA filter from large particles and extend its service life. This is a very important point and is often ignored.

We once worked with a microelectronics manufacturing company. They installed severalhigh efficiency filters, but the problem with air purity remained. After careful analysis, it was determined that the ventilation system was old and worn out and did not provide sufficient air circulation. As a result, the entire ventilation system had to be replaced and new filters installed. This required significant costs, but as a result it was possible to achieve the required level of air purity.

Types of Cleanroom Filters: A Brief Overview

There are many types of cleanroom filters, each with their own features and benefits. Here are some of the most common:

• HEPA filters: To capture particles down to 0.3 microns.
• ULPA filters: More efficient than HEPA filters to capture particles as small as 0.12 microns. Used in critically clean rooms.
• Activated carbon: For adsorption of gases and odors.
• Electrical filters: To capture charged particles.

The choice of filter type depends on the specific cleanliness requirements and the type of contaminants.

Filter maintenance and replacement

Regular maintenance and replacementhigh efficiency filters– this is the key to their effective work. How often you replace filters depends on many factors, including the type of filter, the degree of air pollution, and the amount of use. It is recommended to regularly check the condition of the filters and replace them promptly. We offer maintenance and replacement services for cleanroom filters. We also provide consultations on the optimal replacement regimen.

It is important not only to replace the filter, but also to dispose of it correctly. Used filters may contain hazardous substances and must be disposed of in accordance with legal requirements.

Conclusion

Installationhigh efficiency filtersin clean rooms is a complex task that requires a professional approach. It's not enough to just buy good filters and hang them up. There are many factors to consider, including the type of space, type of contaminants, ventilation system and cleanliness requirements. If you want to ensure the required level of air purity, contact specialists.

Company Ltd. ?Tianjin Tongchang Junqi Cleaning Equipment? provides a full range of design, installation and maintenance services for cleanroom filtration systems. We use only high-quality filters and equipment from leading global manufacturers. With us you can be confident in the efficiency and reliability of your filtration system.

If you have any questions, don't hesitate to contact us. We are always ready to help.