Quietest Air Purifier, Expert Recommendations To Choose

i researched for the quietest air purifier because I’m very sensitive to noise while sleeping and working, and constant humming or fan sounds really disturb my rest and focus.

i read expert reviews from trusted sources like The New York Times (Wirecutter), Consumer Reports, and Healthline, and after comparing many models, these two kept coming up as top choices for being both effective and very quiet:

• Dyson Purifier Big+Quiet

https://www.amazon.com/Dyson-Purifier-Quiet-Formaldehyde-Extra/dp/B0CDQVR4G9?th=1
• Alen Air Purifier BreatheSmart 75i**

https://www.amazon.com/Alen-Purifier-BreatheSmart-Filter-Carbon/dp/B0F99CTJPC?th=1

however, i’m having trouble deciding which one would be better for me, and I’d really appreciate some expert advice and hopefully some experienced users or professionals on this forum can share their thoughts as well.

i mainly want an air purifier for my bedroom and home office, so low noise is extremely important to me, especially at night. i’m looking for something that runs very quietly on low or sleep mode, still provides good air cleaning performance, and feels comfortable to keep running all day.

which one would you recommend as the quietest and most suitable option for my situation? any suggestions or real-world experiences would be greatly appreciated.

Thanks in advance.