First, it's essential to recognize the types of compressors available in the market. The most common types are reciprocating compressors, rotary screw compressors, and portable air compressors. Each type has its unique features and uses. For instance, reciprocating compressors are generally less expensive and are ideal for smaller car washes, while rotary screw compressors, being more efficient and durable, are suitable for larger operations but come at a higher price point.