Supply filter module for ISO 5 cleanrooms

Talking aboutsupply filter module for ISO 5 cleanrooms, one often comes across demagogic statements about 'absolute purity' and 'ideal filtration'. In reality, everything is much more complicated. The question is not what filtration class is declared, but in real operating conditions, the correct choice of components and, most importantly, regular maintenance. In this article I will share my experience based on working with various ventilation and filtration systems and try to dispel some common myths.

General filtration requirements for ISO Class 5 premises

Before we dive into the details, it is important to understand what an ISO Class 5 facility is. This means that the permissible concentration of particles larger than 0.1 microns in the air must not exceed 100 particles per cubic meter. Achieving such cleanliness requires multi-stage filtration, including a pre-filter for coarse dust, a fine filter and, of course,supply filter module, capable of capturing the smallest particles. The problem is that simply 'declared class' is not enough. Actual efficiency depends on many factors, from the quality of the filter elements to the air flow rate and the presence of cyclones to trap particles.

Particular attention should be paid to the materials of the filter elements. For example, many manufacturers use polypropylene filters, which are quite suitable for pre-filtration. However, to achieve the required ISO 5 cleanliness, high-density woven filters are required, often made from nonwovens with integrated catalytic layers. It is also important to consider the effects of humidity and temperature on filtration efficiency. High humidity can lead to the formation of mold and bacteria, which in turn can pollute the air. This is especially true for rooms where strict humidity control is maintained.

Types of filter elements and their features

There are several types of filter elements used insupply filter modules. The most common are coarse filters (usually synthetic), fine filters (more dense, often made of polypropylene or cellulose), and HEPA filters (High Efficiency Particulate Air). HEPA filters provide the highest level of purification, but they are also the most expensive and require more maintenance. Personally, I have seen cases where customers choose HEPA filters, but do not take into account the need for regular replacement and disinfection. As a result, the filters quickly became clogged and the efficiency of the system decreased.

An important aspect is the choice of filter element material. For example, filters with the addition of activated carbon can effectively remove odors and gases, which is especially important for rooms where chemical reactions are carried out or substances with an unpleasant odor are stored. But it is important to remember that activated carbon has a limited lifespan and requires periodic replacement.

Problems when selecting and installing filter modules

One of the most common questions I receive is how to choose the fan power. Many customers believe that a more powerful fan automatically means higher filtration efficiency. This is wrong. It is important to correctly calculate the required fan performance, taking into account the area of ​​the room, ceiling height, number of people and other factors. The wrong choice can lead to both insufficient removal of contaminated air and excessive load on the ventilation system.

In addition, it is important to take into account the design featuressupply filter moduleand its compatibility with the existing ventilation system. For example, some modules require special installation or connection to an automatic control system. Improper installation can result in air leaks, reduced filtration efficiency, and even equipment damage.

Repairing Air Leaks

Air leaks are a serious problem that can significantly reduce efficiency.supply filter module. They can occur due to leaky filter connections, damage to the housing, or improper installation. To eliminate air leaks, it is necessary to conduct a thorough inspection of the system and check the tightness of all connections. If leaks are detected, they must be repaired using special sealants or sealing materials. We are at ?Tianjin Tongchang Junqi Cleaning Equipment Co.,Ltd? We often recommend performing regular system tightness checks after installation and repairs.

Real examples and lessons

We recently worked with an electronics company. They required an ISO 5 ventilation and filtration system to protect the equipment from dust and contaminants. We have installedsupply filter modulewith HEPA filters and automatic filter replacement system. However, after several months of use, they contacted us with a complaint about decreased filtration efficiency. Upon inspection, we discovered that the filters were not installed correctly, causing air leaks. Once the leaks were repaired, filtration efficiency was restored. This case showed how important it is to follow installation technology and regularly carry out system maintenance.

In another case, we installed a filtration system in a laboratory where chemical experiments were being carried out. Initially, an activated carbon system was chosen to remove odors. However, over time, the activated carbon became saturated and the system no longer effectively removed odors. We had to replace the activated carbon with a new one, and also install additional filters to remove gases.

Maintenance and filter replacement regulations

Regular maintenance is the key to long and efficient operationsupply filter module. It is recommended to inspect and clean the filters at least once a month, and also regularly check the tightness of the system. The service life of filters depends on operating conditions and the degree of air pollution. Filters must be replaced according to the manufacturer's recommendations.

The procedure for replacing filters must be clearly stated in the technical documentation. In addition, it is important to keep a record of filter replacements to prevent over-accumulation and reduction of filtration efficiency. In ?Tianjin Tongchang Junqi Cleaning Equipment Co.,Ltd. We offer maintenance and filter replacement services.

The importance of integration with an automation system

Modernsupply filter modulesoften integrated with automatic ventilation control systems. This allows you to automatically adjust fan speed, replace filters and monitor system status. Integration with an automation system increases the efficiency of the ventilation system and reduces maintenance costs.

I hope this information will help you better understand the features of usesupply filter modules for cleanrooms ISO class 5. Remember that correct selection, installation and maintenance are the key to achieving the required air purity and equipment protection.