I have both Ombra and Pari. I am using the AeroEclipse nebulizer, and it works with both the Pari trek and Ombra. But the nebulizing time seems a little bit quicker with the Ombra. The Ombra and AeroEclipse are sold together as a system. I figure since its every day, the little bit of time saved adds up. So I use the Ombra at home and Pari trek for travel (no battery, I plug it in).

BTW https://www.medicaleshop.com/ had the best pricing for Ombra + AeroEclipse system. It arrived super quickly.