The AromaRoom air purifier features a medical-grade HEPA14 filter that captures 99.99% of particles as small as 0.1 microns, including dust, pollen, pet dander, mold, and smoke, making it ideal for allergy sufferers and pet owners; it also includes a smart PM2.5 sensor that monitors air quality in real time, auto-adjusts fan speed, and displays color-coded air quality levels. With whisper-quiet 22dB Sleep Mode and powerful purification for spaces up to 2,100 sq ft per hour (Cadr 350+ m /h), it s perfect for bedrooms, nurseries, or large living areas—just remember to remove the filter s plastic wrap before use and reset the indicator after 2160 hours.