Just bought it recently, installed it once and realized its for rooms up to 8 square meters.
It was functioning well but our room is too big. Minimal signs of use at the window part, just a little scratch which doesnt affect anything. 190 CHF or best offer
Pick up in Grand-Saconnex

This is a private sale. The sale is made without any warranties or guarantees. Any liability for material defects is excluded. The exclusion does not apply to liability for damages resulting from gross negligence or intentional breach of duties.