Yousuf
Clean air, at a price
I have 4 Winix U300s in my home, I bought them all within a year of each other. One of them developed a fan rattle which got louder over time. Two of the others had a fan that became unstable, they would constantly go up and down in rpm which was very irritating as it was audible even at the lowest speed, a consistent hum would be better than this. Only one of them seems to be running without issue (so far). On a positive note they clean the air exceptionally well, I just wish they were more reliable and replacement filters weren't so expensive.


