Following the purchase of my flat, which unfortunately has no ventilation, I opted for a dehumidifier to eliminate the humidity in my home, which is quite damp even in summer, and I'm quite satisfied because it works well, going from 70% to 50% in 2 to 3 hours.
I had to buy a hygrometer because you can't see the humidity level on this Rowenta dehumidifier.
I opted for a reconditioned one to limit the ecological impact, it's economical at the same time and a good French brand, no problems with Back market :)