P300

I am bias and I still have a Winix for 10 years now, bought 2x wac5500. Ex-wife took one. Bought another type of Winix a few years ago. They are all still going strong. I have some 300-P coming in a few days, but they are intended as more supplemental units to help boost a higher ACH while maintain a lower noise. I liked the size of the units, and I bought them for $45 in like new condition on amazon. And filters are cheap enough. The size of the units I looked at and immediately thought they would fit nicely on shelves and other places so I wouldn't take up floor space with another larger unit.

I have the first leviot on your list, it works good for pet hair and js fairly quiet. I dislike the winix because it has the plasmawave ozone stuff that is on by default. The winix is very strong but it makes my lings hurt if I forget to turn it off

Both of my Winix air purifiers started smelling like smoke, they are different models, cleaned weekly and filters changed regularly, I don’t recommend them.

I have the Winix. No issues to date. I don’t use the plasma wave feature.

We mainly use the winnix ones. They are fantastic.

Definitely recommend Winix. Australian and comes out top of various tests. (If you haven’t been warned- don’t buy Dyson) Super sensitive to more than just particulates and has a ‘pet filter’ that is changed monthly that goes around the main filter and prevents it getting clogged with dust. Helps to prolong its life if you have pets

I say about 1/3rd of my Winix's have a bit of a smell that dissipates quite quickly.