Blind cleaning (Principle) Each floor of every industrial, commercial and residential building has a multitude of blinds and neon light diffusers that need to be cleaned. Cleaning companies spend a lot of time hand cleaning these items and charge up to $15 per blind and $5 per light diffuser . We all know that time is money and that ultrasonic cleaning takes about one minute for each item. Make your own calculation: 8 hours/day, 1 minute/blind, for a total of 480 blinds to be cleaned. Think about the benefits for a week, a month, a year. Don't wait any longer and contact us if you need more information. ConcepTech has a special division which will help you in this area. Ask us for our various Ultrasonic Cleaner & Ultrasonic Cleaners.