Z ZeApelido Active Member Jun 1, 2016 4,632 68,266 The Peninsula, CA Nov 20, 2018 #1 Nov 20, 2018 #1 Any suggestions on the best value for a portable monitor? Don't want to spend too much, just want to get reliable readings of PM 2.5 concentrations.
Any suggestions on the best value for a portable monitor? Don't want to spend too much, just want to get reliable readings of PM 2.5 concentrations.