Air Purifier Buying Guide

2023-12-19 14:00:54

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“ Four essential checks for choosing an air purifier: household needs, room size and CADR, lifetime cost and CCM, and the activated-carbon and HEPA filter configuration. ”

1. Identify the need:

Smog and dust: This includes autumn and winter smog, spring dust storms, or a home near a factory or busy road where airborne dust levels are high.

New-home renovation: Renovation materials and newly purchased furniture can release formaldehyde, benzene, TVOCs, and other gaseous pollutants.

Older adults and children in the home: People with weaker resistance, especially in a damp living environment where bacteria can grow, may be more vulnerable to allergies or illness.

Households with pets: Pets shed hair, produce odors, and may carry bacteria, all of which can contribute to allergies.

2. Match the unit to the room area using CADR. The national-standard conversion formula is: applicable area = 0.07-0.12 × CADR. A higher CADR is not automatically better, because greater airflow also brings higher power consumption and noise. The right-sized rating is the better choice.

3. Evaluate purification cost using CCM. A higher CCM means a more durable air purifier, less frequent consumable replacement, and lower operating cost. P4 and F4 are currently the highest grades.

4. Evaluate purification performance through the filters. An air purifier mainly relies on activated-carbon and HEPA filters to capture pollutants. For better adsorption and filtration, give priority to a modified carbon-block filter and an H12 or higher HEPA filter.

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Air Purifier Buying Guide

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