I have the inhaler due to a drug-resistant bronchitis, which already lasts for 3 weeks already ordered me. The delivery took place as always prompt. Attempting to unpack, connect and thanks to the accompanying inhalation solution also tried the same. Whether with mouthpiece or mask - both works perfectly. The compressor volume is normal for such devices and that there is a storage compartment I find very convenient. After only 2 days inhalation (2 times a day) my breathing is a little better and also facilitates expectoration - I did not think. The handling is easy and the manuals are very comprehensive. To disinfect I take the disused microwave sterilizer my grandson. This saves time and energy (boiling in hot water). However, whether one purchases more only the single packaged solutions or not a larger package of an isotonic saline solution is cheaper, you have to try yourself (the fill is located namely outside only). The prices are once again TIP! As Zweitvernebler I also equal to the professional nebuliser kit chosen (original equipment) - price well recommended on Amazon. I can only recommend this inhaler each!