231
people found this helpful, as of 2023
ranked #129,596 most helpful
out of 571,544,897 reviews
I liked the sleep mode as it provided a perfect level of white noise but was skeptical of how much it was improving the air quality. After 4 months of consistent use I checked the filter and WOW! I had no idea my air was that dirty! I recommend this to purify the air and as a bonus it serves as a good sleep aide.