AddOn or Integration for Bluetooth Air Purifier

Hi all, I have a Philips Air Purifier 4000i Series, which seems to operate on Wifi and is detected with Homeassistant and there is a HACS custom integration for it. Works fine, everything is operational.
I have a second Air Purifier with Bluetooth connection, Soehnle / Leifheit Airfresh Clean Connect with App which is visible as AC500 in BT advertisements in HA. The android App from Soehnle works fine. But I could not find any integration or addon for it in HA.
Is there a possibility to use it in HA, like a generic BT Air Purifier, or find out which BT Chipset it uses and which BT Protokoll?