I don't know that there is a list, but if you google the devices and go to their websites, they'll certainly tell you if their device is approved. You could also google FDA approved handheld spirometry devices and see what pops up. Devices like this have been used for many years in various trials and clinical studies regarding remote monitoring of various chronic conditions. I suspect the recent pandemic and interest as well as use of virtual monitoring may trigger additional interest. The question is whether the insurance companies will pay for the devices and the technological connectivity required.

Can I get a list of the approved devices?

There have been portable devices that provide FEV1 information for many years. This one just happened to be approved in June of 2020, but there have been many available since about 2010 and maybe even earlier. The fact that it's the last in a long line of such devices may be why it wasn't reported earlier.

It took Google a couple of weeks but She found IT!!! The ball is rollin' now.
AJMC.com Managed Markets Network: Telemonitoring Reduces Some Exacerbation-Related Health Care Use in COPD.
https://www.ajmc.com/view/telemonitoring-reduce...

Good point Jean. Your post reminded me of the old adage -"Follow the money." The answer was there all the time!

"The inclusion of remote therapeutic monitoring codes in the 2022 Physician Fee Schedule suggests that transformations in digital health policy initiated in response to COVID-19 are beginning to have some permanence. . . .

In the U.S., preventable hospitalizations and emergency department visits related to medication non-adherence cost more than $300 billion a year, according to National Institutes of Health research.

Therefore, the inclusion of medication adherence programs in CMS' proposed RTM codes represent a major step forward in solving one of healthcare's biggest challenges. These codes also represent one of the latest advancements to modernize reimbursement for digital health."