The Zippi is fairly quiet, has two speeds and has a failed Drresign.
Thanks to its textile rotor it must not be locked in a cage. What I find enjoyable: The Keep surfing has no strong gebündelen air jet, but swirled the air quite a large area. This one does not feel so much to sit in a wind tunnel.
So I can also list overnight judge him in the summer on the bed and just let him pass through.
There are always cross-country skiers. My Zippis run in summer sometimes weeks, almost without a break and show no signs of wear.
When I disassembled the cat from the destroyed, I could also see why: all processed very solid and no cheap China plastic garbage but much solid metal.