English
中文
-
Typical Applications of Coarse, Medium-Efficiency, and HEPA Filters
Coarse, medium-efficiency, and HEPA filters each target different particle sizes and serve different HVAC, industrial, medical, commercial, and household applications.
-
How Are Air-Filter Consumables Classified by Efficiency?
Air-filter consumables are commonly divided into coarse, medium, high-efficiency (HEPA), and ultra-high-efficiency (ULPA) classes under major international standards.
-
Understanding Filter Media in Fresh-Air Air Conditioners
Filter media are the heart of fresh-air air conditioners. Learn how prefilters, HEPA media, and activated carbon work, when to replace them, and how to maintain them.
-
Common Materials and Working Principles of High-Efficiency Air Filters
High-efficiency air filters remove particles of 0.3 μm and larger. Learn about common media, frames, seals, and the main filtration mechanisms.
-
How to Choose a Pre-Filter for a Home Air Purifier
Choosing the right pre-filter extends the life of the main filter and improves purification. Focus on material, structure, and ease of maintenance.
-
Increasing Pleat Density Expands the Effective Filtration Area of Air Filter Media
Increasing pleat density adds more filter area within the same footprint, improving pollutant capture and service life when spacing and depth are properly controlled.
-
H12 Air Filter Media: Key Characteristics and Advantages
H12 filter media combine 99.5%–99.9% efficiency for 0.3 μm particles with relatively low resistance, stable performance, and broad compatibility.
-
Inertial Impaction in Air Filters: Why Small Particles Are Captured
Inertial impaction captures particles that cannot follow airflow as it bends around filter fibers, causing them to strike and adhere to the fibers.
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
