Review on Donatello Smart Wifi Air Purifier: Efficiently Clean Your Home with Alexa Enabled True HEPA 🌬️ Filter - Ideal for Pollen - 387 sq.ft Coverage - 24dB Quiet Operation - PM2.5 Display by Sandy Johnson

This air purifier is so quiet you won't even notice it's there. The only way I could make sure it was on was in my dusty living room, where I could see the dust in the air and on the furniture. This time I usually have a sore throat, but since using the air purifier, I no longer have a sore throat. Very happy with my purchase.