The YUNMI VIOMI Master air conditioner has been launched in China. The gadget can heat or cool your home, and an integrated filter unit can remove up to 99% of formaldehyde found in the house in two hours, according to the company. The device is designed to cover an area from 15 to 22 m² (~161 to 237 ft²) and can be controlled with voice commands.https://www.notebookcheck.net/YUNMI-VIOMI-Master-air-conditioner-1-5-hp-with-99-formaldehyde-removal-launches.664510.0.html
No need to launch this product to medieval Europe, since we don't have any electricity.