How to Choose the Air Filtration System for Workshop Purification

In modern industrial production and many fields with stringent environmental requirements, the air filtration system for workshop purification plays a vital role. As Guangzhou Cleanroom Construction Co., Ltd., a professional manufacturer of purification equipment, we deeply understand that a suitable air filtration system is the key to ensuring the air quality in the workshop, product quality, and the health of personnel. Today, we will provide you with a detailed guide on how to select the air filtration system for workshop purification.

Different production processes have vastly different requirements for workshop cleanliness. For example, in an electronic chip manufacturing workshop, tiny dust particles can cause chip short circuits and performance failures, often requiring an extremely high cleanliness level, such as ISO Class 1 or even higher standards. This demands that the air filtration system possess super-strong dust filtering capabilities, almost excluding all fine impurities in the air. In contrast, although food processing workshops do not have as extreme requirements for dust as the electronics industry, relatively high cleanliness is still needed to prevent foreign objects from mixing into food and ensure food safety, generally reaching ISO Class 7 - 8. Therefore, enterprises must first accurately determine the required cleanliness level of the workshop based on their own production processes, which is the foundation for choosing an air filtration system.

The primary efficiency filter, as the first line of defense in air purification, is mainly responsible for intercepting larger particulate matter in the air, such as dust, hair, and fibers, with a filtration precision typically above 5μm. It can effectively protect subsequent medium-efficiency and high-efficiency filters, prolong their service lives, and reduce overall maintenance costs. For some ordinary machining workshops and warehousing and logistics workshops with a dusty environment, the primary efficiency filter can play a significant preliminary purification role.

The medium efficiency filter has a filtration precision between that of the primary and high-efficiency filters and can generally filter particles of 1 - 5μm. It can further capture medium-sized dust in the air. For pharmaceutical workshops, optical instrument assembly workshops, etc., on the basis of primary filtration, the medium efficiency filter can provide finer air purification for the workshop to ensure that the production environment meets the process requirements.

The HEPA filter is the core component for achieving a high-cleanliness environment. For dust particles above 0.3μm, its filtration efficiency can reach over 99.97% and is widely used in fields with extremely high cleanliness requirements, such as the aforementioned electronic chip manufacturing and high-end biomedical research and development. The ULPA filter is even more precise, with a filtration efficiency of over 99.999% for tiny particles of 0.1 - 0.2μm, safeguarding ultra-precision production that has zero tolerance for nano-scale dust.

The air flow of the air filtration system must match factors such as the size of the workshop space, the number of personnel, and the heat generated by the operation of equipment. If the air flow is too small, insufficient air exchange in the workshop will lead to a decline in air quality, unable to promptly remove dust, odors, and the heat generated by equipment heat dissipation. Conversely, if the air flow is too large, on the one hand, it will cause energy waste, and on the other hand, it may cause large air flow disturbances in the workshop, affecting some precision operations, such as the micro-assembly process of electronic equipment. Enterprises should determine appropriate air flow parameters through professional calculations or consultations with purification equipment manufacturers.

Filters generate resistance during operation, and excessive resistance will increase fan energy consumption and even affect the normal operation of the fan. A high-quality air filtration system should have a relatively low initial resistance, and as the usage time increases, the resistance rise rate should be relatively slow, enabling it to maintain stable filtering performance for a long time. When making a selection, you can check the resistance parameters in the filter product manual and compare different brands and models to choose filters with good resistance characteristics.

Workshop production is usually continuous. Once the air filtration system fails, such as filter rupture or fan stoppage, it will bring huge losses to production. Therefore, it is necessary to choose products with reliable quality and high stability, giving priority to brands that have undergone long-term market tests and have a good reputation. At the same time, understand the product warranty policy and after-sales service response speed to ensure that problems can be resolved in a timely manner when they occur.

In addition to the initial cost of purchasing equipment, the maintenance cost is also a factor that cannot be ignored. It includes the regular replacement cost of filters, the maintenance cost of fans, energy consumption costs, etc. For example, although some HEPA filters have excellent filtering effects, they are expensive and have a relatively short replacement cycle, which means a relatively high long-term maintenance cost. However, some new air filtration systems adopt a modular design, making filter replacement convenient and energy consumption low, effectively reducing the operating costs of enterprises. Enterprises should make a comprehensive trade-off and choose a cost-effective system.

Choosing a suitable air filtration system for workshop purification is by no means an easy task. It requires comprehensive consideration of many factors such as cleanliness level, filtration efficiency, air flow, reliability, and maintenance cost. Guangzhou Cleanroom Construction Co., Ltd., with its rich industry experience and professional technical team, can customize the most suitable air filtration system solution for your workshop, helping you create an ideal production environment. If you have any questions, please feel free to contact us!