I know this subject has been on here before, but I have some small marks that are not fingerprints there is some dust on the screen.
Do I need to get a Giotto's Rocket Air Blaster: https://amzn.to/2TNfGcR
?
I like this one because it is eco friendly 
I am thinking of this one
Will this get rid of marks that are, not t fingerprint marks? They look like grease marks
They are only small. Or do I just get a Microfiber cloth? I have an Apple thunderbolt display that has no marks on it. I won't be using it very often.
Do I need to get a Giotto's Rocket Air Blaster: https://amzn.to/2TNfGcR
?
I am thinking of this one