The two new air purifiers from Switchbot (Air Purifier and Air Purifier Table) are not supported by the Switchbot Cloud integration.
I have both, and I’m not able to see them in Home Assistant, nor control the mode, fan speed, light, or other attributes. I can’t get their detected PM2.5 levels either. It would be cool if these were supported, please. My third air purifier (Levoit 400S) is perfectly supported by HA.
I’d be willing to help with testing if a dev doesn’t have these purifiers to test an integration.
You need hub for that 
even with the hub the controls are limited to on/off as far as I can tell. Would be great to get some control over the other functions this device offers.
Not good. However, I am not interested in extra hubs