Hello jktz90,   You can ignore that error it does not apply to the R6515. I'd recommend you  update the iDRAC firmware to version 6.10.30.00. iDRAC  Air filter platform notification feature was updated.   [URL]  
Hey, I just received the following warning from my IDRAC module: 'Detailed Description: Air filter in bezel is not functioning as expected and needs replacement.Recommended Action: Replace the Air filter with a cleaner air inlet.Message ID: BEZL0003System Model: PowerEdge R6515' . As far as I know there is no air filter on my PowerEdge R6515... any thoughts? can I ignore this warning?  
PowerEdge R6515 iDRAC notification: Air filter functionality in bezel is 
degraded