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Eight Tips for Choosing an Air Purifier
Compare CADR, CCM, room coverage, noise, energy efficiency, purification technology, convenience features, and the types of pollutants an air purifier can remove.
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A Practical Air Purifier Buying Guide
A good air purifier should combine strong CADR and CCM performance with the right filter media, a sound airflow design, acceptable noise, and odor-free operation.
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How Should You Choose an Air Purifier?
Air purifiers use physical filtration and adsorption to remove airborne particles, harmful gases, odors, and some microorganisms. The filter is the key component.
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How to Calculate the Right Air Purifier CADR for Your Home
To meet indoor-air cleanliness targets, an air purifier needs adequate air changes and high single-pass efficiency. Room size, ceiling height, and CADR determine suitable coverage.
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Understanding an Air Purifier's CCM Rating
CCM measures the cumulative amount of pollution a filter can remove before it reaches the end of its useful life. A higher CCM generally means a longer-lasting filter.
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Understanding an Air Purifier's CADR Rating
CADR measures clean-air delivery in cubic meters per hour. Higher values generally mean faster purification and wider coverage, but particle and formaldehyde CADR must be checked separately.
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What Makes an Air Purifier Truly Effective?
An effective air purifier combines a high CADR, high CCM, low noise, and strong energy efficiency. These factors determine cleaning speed, filter life, comfort, and power use.
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Common Misconceptions About HEPA Filters
HEPA performance is often misunderstood. Particle size does not affect capture in a simple linear way, and the highest-efficiency filter is not always best for the complete system.
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
