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Medium-Efficiency Bag Filters: A Core Component of Air Purification Systems
As the intermediate line of defense in an air-purification system, F5–F9 bag filters capture 1–10 μm dust, pollen, and other fine particles between the pre-filter and the high-efficiency filter.
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Kelan Core utilizes American Prafy product solutions
Purafil: A Leader in Gas Phase Filtration. Since its founding in 1969, Purafil, an American company, has been deeply involved in the field of gas phase purification. With over fifty years of technological accumulation and innovation, it has become a global leader in gas phase filtration technology.
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Kelan Core uses custom-grade Toray filter paper, highlighting its superior product strength.
Toray Industries is a globally renowned materials company, founded in Japan in 1926. Its business spans fields such as fibers, high-performance chemicals, carbon fiber composites, environmental engineering, and life sciences, achieving remarkable results in materials innovation and production, particularly in the field of carbon fiber.
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Notice on Changes to Air-Conditioner Filter Sales at the Kelan Xinxin Tmall Store
The Kelan Xinxin Tmall store has discontinued single-unit air-conditioner filters and now recommends a cost-effective three-pack for a year of easy replacement.
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Kelan Xinxin Fresh-Air AC Filter: Five Innovations for Better Air
Five innovations—durable electrostatic charge, H12 media, antimicrobial protection, a pre-filter, and denser pleats—improve filter efficiency and service life.
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Kelan Xinxin: The Brand Power Behind a Trusted Filter
Kelan Xinxin has grown into a trusted filter brand by combining professional-grade quality, broad product compatibility, fair pricing, and reliable service.
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Key Features of Home Air Filters for Beijing
Beijing homes need strong PM2.5, pollen and formaldehyde removal, along with smart control, quiet operation and filters suited to local pollution levels, room sizes and sensitive occupants.
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Types of Air Filters Used in Pharmaceutical Plants
Air filters are essential to pharmaceutical cleanrooms. This guide explains pre-filters, medium-efficiency filters, HEPA and ULPA filters, along with key GMP selection requirements.
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
