Stop Powershell Script if disk size is less than X

I wonder if you could help me out guys.
I need to stop a powershell script if the disk size of partition E is less than 10GB, and to continue if it´s more than 10GB.

So far i managed to get my disk size listed with this.

Get-WmiObject -Class win32_logicaldisk | Format-Table DeviceId,@{n="FreeSpace";e={[math]::Round($_.FreeSpace/1GB,2)}}

And i get this result:

So, i want to stop the powershell script if E unit has less than 10GB.
How can i do it?

Thanks in advance

>Solution :

If you want to put the Freespace of E in a variable you can do this :

$VarSpace = $(Get-WmiObject -Class win32_logicaldisk | Where-Object -Property Name -eq C:).FreeSpace/1GB

then you can do a simple if for check :

if ($VarSpace -le 10){ <Something for stopping you script like exit> }