I work in the research and must use this sucker because he, unlike the fine previously used Dustex a filter has with which I must also CFRP and GRP absorb dust. So much for Verwednungszweck ... He is now in use for several months and I can only say that this device is absolutely not suitable for me (and my colleagues). The noise through the automatic filter cleaning is a disgrace, every time you feel that thing flying one around the ears. Without hearing protection, you can not use the device! I am not an expert on vacuum cleaner so I was hoping I could turn this feature off. As the cup is integrated with me on the test bench and is controlled by the PC, which unfortunately does not work. Unfortunately, the feature turns itself always automatically added as soon as one turns him back. That's why I called and asked if I can handle this somehow, that is the automatic engagement of the filter cleaning can turn off the hotline. The unfriendly gentleman at the hotline initially did not understand my problem. After detailed explanation he told me then that would be rude told the Kaufgund for clients ... I had a feeling he would / could help me not easy. Since I do not kilos of CFRP dust etc reasonably eye I can not really say about cleaning and changing the filter / bag. Unfortunately I had to say now that the dust after turning off the vacuum cleaner falls out of the tube ... And I think for a sucker 475 more than sad.
Conclusion: Unreasonable noise of automatic filter cleaning, poisonous matter, which with light tapping of the head falls out after the unit again and a hotline which seem to be incredibly rude and incompetent ...
-> Would have expected from a reputable company like Kärcher much more ... Absolutely no recommendation to buy !!!
