[Mahler9th]

Thanks for posting that video DonDavis.

May be helpful for folks to visualize, and for folks with deeper interest, help them look for additional information and perspective.

I think you may work in the medical device and/or equipment field, perhaps I think as a biomedical engineer employed to, in part maintain various types of equipment used in care setting.

If so, and if you have been at it for a while, you may have had some experience with some of the products that folks in my immediate network and/or I have helped develop and/or commercialize.

First contribution I made we to GE's first microprocessor-controlled vascular imaging system. GE's second whole body CAT scanner (CT/T 9800; around 1980) and a few other CAT scanners, GE's first digital subtraction angiography system, and for example Acuson (now Siemens) Aspen and Sequoia ultrasound systems. Even the Natus infant hearing screening system.

If you were around back in the day you probably knew about pulse oximetery company Nellcor- really got pulse ox going. That company had three founders-- I have worked for two of them in later companies. Nellcor became Nellcor Puritan Bennet and was acquired by Tyco, and I think eventually Medtronic.

In any case, thanks for trying to help folks understand that ventilators can be relatively complex and are definitely used in a pretty challenging way in care settings. Little things can make a difference between life and death.