A dental laboratory needed instrument air at a small but constant flow. The requirement was not volume — it was certainty: any oil in the line would contaminate the work and force a batch to be scrapped.
What was installed
A 5.5 kW oil-free scroll with a receiver and a refrigerated dryer, sized to the laboratory rather than to a factory. No downstream filtration is required to reach the air quality the process needs, because no oil enters the compression chamber in the first place.
Result
The unit sits inside the laboratory rather than in a plant room, because the noise level allows it. Maintenance is limited to the intake filter and an annual check.