Buying an air purifier requires matching the device’s filtration power to your specific room size and air quality concerns. To ensure your home is a sanctuary from allergens and pollutants, you must look beyond marketing claims and focus on certified performance metrics like CADR and True HEPA standards. 1. Match the Purifier to Your Room Size
The most common mistake is buying an undersized unit. Manufacturers often list coverage based on only one air change per hour (ACH), which is insufficient for real-world cleaning. Air Purifier Buying Guide - Consumer Reports