The Makita Quiet Series Electric Air Compressors are designed to reduce the exposure to excessive noise while delivering a professional performance. At 60 dB or less, the Quiet Series Electric Air Compressors provide quiet operation for indoor use. The series includes three compressors. The MAC100Q is ideal for one tool on small jobs, while the MAC210Q and MAC320Q are ideal for larger applications or multiple tools. The series runs at a low 1,750 rpm which reduces incidences of tripped breakers and is less likely to experience motor failure resulting from voltage drop. Air tanks fill quickly and a lever-handle tank drain provides easy air tank release.