I use a commercial Ingersol rand in my removable lab (I use a lot of air, I would guess U will do the same).
There are a lot of great comercial expensive devices and if money is no concern the answers are easy finding. There was a post last year of a lab that took a fridge put it next to the compressor & piped 3 of those separator traps in the fridge, (with beverages) the cold air dried the initial air and they had a descant filter after the fridge to catch the last moisture. Replacing the descent dryer because it gets soaked can really add up and takes time off air supply. My Ingersoll Rand 7.5-HP 80-Gallon Two-Stage Air Compressor was bought in 1989, after burning up several reed valve, I thought of the screw or rotary compressor but didn't have enough money & I was doing luxene I needed more air, I have never run out with this baby. With the siliencer it is quieter than my model trimmer. I change oil every 2000. hrs it has a timer on it, it only uses a quart well worth it. I did have to replace an air regulator switch this year.
http://dentallabnetwork.com/forums/f71/stuck-storage-closet-11027/index2.html#post72090 Be careful of some of the E-Bay "silient Air Compressors" That is basically a refrigerator scroll compressor attached to a tank (very reliable very quiet). You probably should be replacing the synthetic oil every 2500hrs of use, some of those have use ratings on them now, anyone purchasing one should make sure it has a 100% continuous rating, and that their needs don't expand beyond 105 psi or 2-4 CFM. As I do acetal & sometimes luxene I need 150psi. I have a walnut shell blaster that gobbles 5 cfm at 60psi, even my air scribe uses 2cfm. A buffalo air chisel for dentures uses 4cfm @45psi. The 100% rating for a Sil-Air 100-50 would be closer to $2000. today do not trust the custom-air "jun-air like" you see on e-bay they are 50%run 15min 15min off, a lab with 2 handpieces will burn them up. I have some friends who bought one, there was no return & a HVAC friend of mine rebuilt their old Sil-Air 150-50 and they R using the new one as an emergency backup(he replaced one of the heads with a commercial freezer head at the same time).