Excluding a volume label from a disk free space alert.

Hello everyone, the sun is shinning and I have a half decent week. I am trying to get a free disk space (<5%) alert to not trigger on drives with a label of PageFile. I have tried various values such as volume description. The alert for some reason is also picking up memory values. here is the alert details... Please can anyone assist. BTW the trigger is the second screen shot. Many thanks in advance

Nick