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Common Air Filter Categories for Central Air-Conditioning Systems
Central air-conditioning systems commonly use pre-filters, medium-efficiency filters, and HEPA filters, selected according to particle size, efficiency, airflow, and temperature needs.
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Purpose of a 30 m³ Large Environmental Test Chamber
A 30 m³ chamber simulates polluted indoor conditions and tests air purifiers for CCM, CADR, removal efficiency, purification performance, ozone, and other indicators.
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What Types of Pre-Filters Are Available?
Pre-filters include panel, pleated, bag, and washable designs. They capture particles larger than 5 µm and use different frames, media, and protective meshes for each application.
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Custom HEPA Air Filters for Vacuum Cleaners
Vacuum-cleaner HEPA filters can capture 99.7% of particles larger than 0.3 µm. Custom units require precise dimensions, pleat heights of about 8 mm, and reliable quality control.
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How Much Do You Know About Air Filter Basics?
Air filter performance depends on the media, frame, resistance, efficiency, and service life. Understanding these factors helps prevent excessive pressure drop and secondary pollution.
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What Does the ISO 16890 Air Filter Standard Cover?
ISO 16890 has four parts covering specifications and classification, efficiency and resistance testing, gravimetric testing and dust loading, and conditioning methods.
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HEPA Filter Pleating: Glass Fiber vs. PP Melt-Blown Media
Glass-fiber media offers high efficiency but is fragile and costly. PP melt-blown media provides similar performance, higher production yield, and simpler pleating.
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Hisense Central Air-Conditioning nanoe™ Technology
Hisense integrates nanoe™ mildly acidic water ions into its central AC health module, using a decomposition-based approach to address indoor pollutants.
Company landline
010-60770969
Sales Phone/WeChat: 15601000090
Purchasing Management/WeChat: 13331060986
Company Phone: 010-60770969
Address: Room 1708, Building B, Jinyu International Center, Longyu East 1st Road, Huilongguan Street, Changping District, Beijing
©2026 Kelan Filtration Technology(Beijing) Group Co., Ltd. All rights reserved
Record Number: Jing ICP No. 2022016037-2
Technical Support: Suyuan Network
Sales Phone/WeChat: 15601000090
Purchasing Management/WeChat: 13331060986
Company Phone: 010-60770969
Address: Room 1708, Building B, Jinyu International Center, Longyu East 1st Road, Huilongguan Street, Changping District, Beijing
©2026 Copyright Beijing Kelan Fresh Air Technology Co., Ltd. All rights reserved
Record Number: Jing ICP No. 2022016037-2
Technical Support: Suyuan Network
