Featured Articles
Air filtration technology columns covering AMC control, standards analysis, product selection guides, and application cases.
Comprehensive Analysis of ISO 14644 Cleanroom Classification Standard
ISO 14644 is the international standard defining cleanroom cleanliness grades, ranging from ISO Class 1 to Class 9 with nine grades total. This article provides detailed interpretation of particle concentration limits for each grade, testing methods, and comparison with US FED-STD-209.
High-Temperature Filter Material Technology and Application Scenarios
Standard filters rapidly degrade and fail in high-temperature environments. This article introduces material characteristic comparisons of glass fiber, ceramic fiber, and metal fiber high-temperature filter materials, as well as practical applications in scenarios like ovens, incinerators, and paint spray lines.
Air Filtration Technology in Semiconductor Manufacturing
Semiconductor processes have the most stringent requirements for air cleanliness in industry. This article provides an overview of multi-layer filtration architecture from external air treatment to cleanroom endpoints, as well as new challenges and solutions brought by advanced process nodes.
Cleanroom Filter Replacement Timing and Maintenance Practices
When should filters be replaced? Too early causes waste of costs, too late affects yield rates. This article shares best practices for cleanroom filter maintenance from three dimensions: pressure drop monitoring, particle counting, and service life.
HEPA and ULPA Filters: Differences and Selection Guide
HEPA and ULPA are two major grades of high-efficiency particulate air filters with different application scenarios. This article provides detailed comparison of differences between the two in filtration efficiency, pressure drop, cost, and applicable environments, offering practical selection guidance.
Introduction to ISO 16890 Air Filter Testing Standard
ISO 16890 replaces the decades-old EN 779 standard, adopting a PM-based classification approach. This article provides comprehensive introduction to ISO 16890's testing methods, classification logic, and practical application guidance to help industry correctly understand and apply the new standard.
AMC and PTFE Filter Case Study
This article explores the unique advantages of PTFE (polytetrafluoroethylene) filter materials in AMC control, and through actual semiconductor factory case studies, compares the chemical resistance and filtration performance of traditional glass fiber filters versus PTFE filters.
Membrane-Based Air Filtration Technology for Environmental Suspended Particulate Separation
This review explores the critical role of membrane technology in separating environmental suspended particulates (PM) from air, covering nanofiber membranes, microporous membranes, Janus membranes, photocatalytic membranes, and hollow fiber membranes, and discusses advanced characteristics such as antimicrobial, flame-retardant, and reusable properties.
Case Study and Control Practices for Gaseous Molecular Contaminants (AMC)
In-depth exploration of sources, classification, and control strategies for airborne molecular contaminants (AMC) in semiconductor and panel factories. This article illustrates the critical role of chemical filters in AMC control through real case studies and shares Baisheng Technology's field improvement experience.
Carbon Nanofiber Air Filters Enable Distributed Direct Air Carbon Capture
Developed a carbon nanofiber air filter that can be integrated into existing building ventilation systems to capture CO₂ from environmental air, with net carbon removal efficiency reaching 92.1%, providing an innovative solution for building energy savings and carbon reduction.
Application of Activated Carbon Filters in VOC Removal
Volatile Organic Compounds (VOC) are common pollution issues in indoor air quality and industrial processes. This article explains the adsorption principles of activated carbon filters, selection criteria, and practical applications in different scenarios.
PM2.5 and Indoor Air Quality Improvement Solutions
PM2.5 has become a nationwide air quality concern. This article explains PM2.5 health hazards and sources, and from a building ventilation system perspective, proposes effective strategies and equipment selection recommendations for reducing indoor PM2.5 concentration.
AI-Driven Innovation: Transforming Air Filtration Technology for Sustainable Healthy Buildings
Explores the comprehensive impact of integrating artificial intelligence into air purification technology, covering filtration efficiency prediction, energy optimization, intelligent monitoring, and maintenance scheduling, bringing revolutionary changes to building air quality management.
Strategies for Enhancing Air Filter Performance Sustainability: Challenges and Future Directions
Discusses mechanisms of performance degradation in air filters during long-term use and performance enhancement strategies, covering filter material modification, structural optimization, and nano-coating technology, providing systematic recommendations for extending filter life and reducing environmental burden.
Eco-Friendly and Energy Self-Sufficient Air Purifiers: Alleviating Outdoor Suspended Particulates
This research presents a novel outdoor air purification system utilizing renewable energy and achieving energy self-sufficiency. Test results show approximately 74% removal efficiency for various PM components, opening new avenues for improving outdoor air quality.
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