Up for sale is an LG PuriCare mini Air Purifier.
These are extremely hard to find, especially brand new.
LG discontinued them because the USB Type-C charge port does not work with C-to-C chargers. You need to use an older “big port” USB-A-to-C charge cable. (Most sellers won't tell you about this, but it's important to know - as if you use a C-to-C cable/charger, the unit will not intake power).
Even with that limitation, these are great. I own and use a different unit myself. It provides HEPA purified air wherever. In the car, or at a desk. Great for hotels too.
It even has Bluetooth with apps for iPhone and Android that let you monitor filter status and change settings wirelessly. The app also allows you to control the particle meter, which alerts if it detects pollution. It can be toggled to always on, with the front plastic-cover LED illuminating status, or disabled in favor of manual controls.
The PuriCare mini also has a Turbo mode that will provide intense purification for up to 30 minutes at a time, before going back to low/high/auto mode.