Hi @sjelinski,
As the particle counter resets 30 minutes after the cleaning session ends, it’s not possible that those figures relate to anyone else’s usage of this machine. The values shown on the particle counter in your photo would be completely consistent with your machine being run on your floor for a few seconds to test it, as you’ve outlined.
It's also possible a small quantity of cardboard fibres from the machine's assembly, testing and packaging process could cause an initial spike on first use. This would quickly clear as you continue to use your machine.
Hope this helps!