When choosing the best dental compressor, consider factors like noise level, pressure control, reliability, and size. Top options include oil-free compressors for quieter operation and those with adjustable PSI for precision. The Istar Portable Dental Turbine Air Compressor is a good option for portability, quiet performance, and features like a built-in scaler. Brands like KaVo, Dentsply, and Air Techniques also offer highly rated compressors for professional dental use. For more options, it's recommended to compare specifications based on your practice's needs.