wh.com The new Assistina 3x3 cleans and maintains up to three instruments automatically. Automatic internal and external cleaning, short cycle time, easy to use: perfect preparation of straight and contra-angle handpieces and turbines for sterilization. Assistina 3x3: Clean inside, clean outside Bring me to life! Download the »W&H AR« App free of charge from Google Play (for Android) or the Apple App Store. Open the App and hold your device 50 cm from the ad.