Well, in the last few days I thought your Ombra sounded pretty good to buy in May.. I sent 3 emails to one company that sells them because on most ads they don't list the PSI. (All my Phillips were pretty much in the 40's) I got 3 messages back and they say it's 19PSI!!!! I have never heard of one that low. Then I found a manual on Google for Ombra table top that does list specifications and says it is 37PSI. I had been told years ago that the PSI is the strength of the mist that gets into your lungs? So, I took a screenshot of that manual page and sent back to the company selling and telling me 19PSI but no response yet. With some recommendations and comments applauding Ombra and their aeroeclipse I was sold. But not with a low PSI. I would also need a mask to attatch to that if i did buy in the future