This link: https://www.respiratormaskprotection.com/Respirator-Cartridge-Filter-Reference-Chart.php
Will take you to a very comprehensive guide.
As to which. it's down to what the solvent/thinner you are using is. With enamel paints, where you are using tolulene, mineral spirits, etc., as a thinner/paint base, you want a a magenta (fine particulate) plus green or olive (volitile vapor) filter element.
For "water based" acrylics (the thinners use isopropyl alcohol and the like) you can get by with a Magenta plus Black (orgainc vapors).
All that being said, if you are in a reasonably well-ventilated room, you are not a great risk. Using compressed air, or even nitrogen, as a propellant for the airbrush probably is better for you than using one of the propellant cans (often a refrigerant). Even CO2 is a reasonably good propellant, as long as you are not in an airtight room.