Air purifiers have become increasingly popular household appliances in recent years. However, with the vast number of brands and models on the market and significant price differences, it is difficult for consumers to choose. So, how should you choose an air purifier in 2023?

1. Look at the Sensors

Sensors are the "eyes" of an air purifier and determine the purification effectiveness. The sensors in an air purifier are mainly divided into particulate matter sensors, formaldehyde sensors, VOC sensors, etc.

● Particulate Matter Sensor: Can identify particulate pollutants like PM2.5 and PM10 in the air.

● Formaldehyde Sensor: Can identify harmful gases such as formaldehyde in the air.

● VOC Sensor: Can identify volatile organic compounds and other pollutants in the air.

The more types of sensors, the more types of pollutants can be identified, and the better the purification effect. Additionally, the performance of the sensor should be considered; better performance leads to higher identification accuracy and better purification results.

2. Look at the Filters

The filter is the core component of an air purifier and determines the purification effect. Filters mainly include primary filters, medium-efficiency filters, and high-efficiency (HEPA) filters.

● Primary Filter: Filters large particles such as dust and hair from the air.

● Medium-efficiency Filter: Filters particulate pollutants such as PM2.5 and PM10.

● High-efficiency Filter: Filters harmful gases such as formaldehyde and VOCs.

The filters of an air purifier need regular replacement to ensure effectiveness.

3. Look at the CADR Value

The CADR (Clean Air Delivery Rate) value represents the purification efficiency and is a vital metric for measuring an air purifier's performance. The higher the CADR value, the better the purification effect.

4. Look at the Noise Level

Air purifiers generate noise while working. Therefore, noise levels should also be considered when purchasing.

When buying an air purifier, sensors are a key factor. The more types and better performance the sensors have, the better the purification results. Additionally, pay attention to filters, CADR values, and noise levels to find the right air purifier.