Morantz Ultrasonics manufactures Ultrasonic Cleaning Machines for Window Blind and Curtain Cleaning, Contents Cleaning, Industrial Parts Cleaning & more. We also provide specialized ultrasonic cleaning services.While cleaning window blinds is, by itself, a very profitable business opportunity, blind cleaning can be used to --open the doors-- to provide additional cleaning services to your clients. The reality is that once you start cleaning for a client, the number and types of items you can clean is virtually unlimited (we typically recommend that you use blind cleaning to demonstrate the effectiveness of Window Blind Cleaning and then offer to expand those services).