I had a problem once with noise and decided to buy 2 of these...1 in the living room and 1 in the bedroom. At its lowest speed, you really don't hear it...but move it up a few notches and it serves a purpose AND creates white noise that blocks out everything else.
You may want to look into them
https://www.amazon.com/BLUEAIR-Purifiers-HEPASilent-Allergies-Purifier/dp/B08KPJCDN6/ref=sr_1_15_sspa?crid=1ND6IL5KL0YFV&dib=eyJ2IjoiMSJ9.KeSQsnyXRyoF_QqBvEG8fTR1RG0wUGq0G43JK7Ppd0vPuM7tfDOXwwIp1_cbaDzahvZk3VfdOlJTLtziv1jaNGHAzkIGsgczLKAgalzO3tlXvC36KSLID24X-ya3__l7tj-RuUaWMMjCS5wUusVsUix9FM5UodEzPlg3k0s9mlS0EwDllqBvIAOvETy507dyYK2tujIyr8LvjXO7IlpkUagEBixzsd5wysg-Vv1Nt2IEVJ-4i5QQbtqO0duxthkMALIw7z8KMrqrqWzXkb60RMiBby51_ipTPGPKV_HkN9I.nLPQ67CDyIALgaaagmrmJsYxzoq2mgSxIJQB6dSVLkk&dib_tag=se&keywords=air+filtration+system&qid=1780348867&s=home-garden&sprefix=air+filtra%2Cgarden%2C217&sr=1-15-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&psc=1