Werther PC 120/24 Quiet Wobble Piston Air CompressorDescription The Werther PC 120 24 is the louder brother of the Werther P50 24AL. This air compressor will put out more CFM (4. 24) than the silent P50 24AL which only puts out 2. 1 CFM. The CFM increase of the PC 120 24 is a trade off, like an equivalent exchange, if you want more CFM in a package this small you must gain some noise. The PC 120 24 will have a noise level of 62 db A vs the 40 db A of its brother. This compressor is meant to be a