Briefly about the Easter holidays (lännger than a few days I would have not endured) I had to use (the largest of the series) as a replacement of an oxygen pump E ****. The device could be heard even through closed doors yet! Therefore, the product of this manufacturer for a new acquisition was not an option. The purchase of the pump of Schego, one a manufacturer I did not know before, was an attempt, which I do not regret. The pumping power is at least on the subjective impression equal, optically pump looks good through the transparent cover from (and not as a paving stone) - and in addition to performance, the most important: the operating noise is compared to the roaring E **** - pump more of a whisper ,
