I had a cheap one that cost about £30. It was basically a hard drive fan in the middle of HEPA filter. It went to the charity shop quick smart.
I now have a Meaco dehumidifier to dry my washing but it’s an air purifier too… I think they do dedicated air purifier’s only which may be good. You could research it… read the reviews… etc
Yeah mine is like a jet engine lol but I don’t leave it on past 11pm.
I sympathise, I always shut the window if a neighbour is having a bonfire, barbecue, etc I don’t like it too.