I am using my new eRapid and absolutely loving it! It only takes five minutes and is completely silent. Game-changer! Even though it leaves one ml of 7% behind, it clearly aerosols deeper which leads to better productivity for me. The mouthpiece is interchangeable with my LC sprint so that’s good to know. Curious if it can be hooked up to the Aerobika, but haven’t tried that yet.
There is an excellent video on using it and what each part does. It explains that the blue gasket serves as an expiratory function, with valves on each side that stop the incoming flow of medicine when you’re exhaling, so you’re not wasting too much medicine. The expiratory valve on the mouthpiece allows your exhale to exit. It seems to be appropriately and efficiently set up to help restrict the flow while exhaling to save the medicine. I seem to be getting enough as I am more productive than I was with any other equipment. The video is very informative about a few things, so was worth the watch.
https://share.google/UZA0vnOFN0O9Sl6rr