The SPS30 library “incorrectly” reports PM10 Number Concentration [#/cm3] as Zero (0).
I believe both the Mass and Number Concentrations should increase (or stay the same) when moving up the Particulate Matter Size Scale (from PM1 to PM10), as each larger PM classification includes the concentrations from all sizes smaller than it.
PM10 >= PM4 >= PM2.5 >= PM1.0
Other than that, my SPS30 and the library appear to be working great.
This isn’t a huge concern for me, since Air Monitoring is usually PM2.5 and PM10 Mass Concentrations [μg/m3] for my Industrial Applications, as per the EPA.