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可蓝KelanAir | 海上生明月，天涯共此时！
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空气过滤器多长时间需要更换?
多久更换一次不同效率的空气滤清器？空气过滤器制造商提醒您，请定期更换空气过滤器，而不仅仅是HEPA过滤器。有多少消费者按时更换空气净化器过滤器？除了厂家直接规定的滤网更换频率外，还应考虑使用环境空气质量因素。在环境严重的地区，更换频率会更高。
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What is the operating principle of an air filter?
The operating principle of an air filter relies on a filtration medium as the primary means of filtering. As air passes through the filter, the filter paper traps impurities, causing them to adhere to the filter and thereby achieving the desired air-filtering effect.
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
