OptiChamber Dimaond valved holding chamber is smaller than most conventional chambers. OptiChamber Diamond's intuitive design enhances medication delivery and compliance for patients of all ages, at home or in the hospital. With the LiteTouch VHC small mask that provides greater wearing comfort and easier delivery of aerosol medication. It quickly and comfortably conforms to facial contours, providing a soft, secure fit for increased compliance and treatment effectiveness.