The Coway Airmega AP-1512HH(W) is ideal for individuals or families with medium-sized rooms, such as bedrooms, living rooms, or home offices up to 361 sq ft, who prioritize quiet operation and comprehensive air quality management. If you value a specified low noise level of 24.4 dB, a four-stage filtration system including VOC reduction, and real-time air quality monitoring with an LED indicator, the Coway's features outweigh its higher price for your needs.

The PuroAir 240 is perfect for those needing powerful air purification for very large spaces, like open-concept living areas, basements, or multiple connected rooms, covering up to 1,000 sq ft. If your primary concern is maximum purification power with a CADR (Smoke) of 640 and a lower price point ($159) for extensive coverage, this model offers excellent value. It's suitable for buyers who prioritize performance over specific noise level data or mobile app control.