Unfortunately constantly false alarms

The smoke detector, I found the concept (batteries, emergency lighting) and also the design and perceived quality super and had five of them installed in the apartment.
After a few months only caught one to repeatedly give false positive, then the second, then the third ... Even a transfer to another installation and regular calibration on the test did not help.
At the end I have every time I left the apartment for a few days, removed all smoke detectors, so the fire department in the event of a false alarm does not break my door.
For me, the detectors were unfortunately a clear bad investment which now moves into the electronic waste.
Sorry, but I can not recommend the detector from my experience really.