Medical Disclaimer We receive medical equipment from various medical facilities. We do a basic power on test of each unit where possible. We are not trained or licensed to do full testing of medical equipment. We cannot guarantee full functionality or safety of a device. This item is meant for resale to companies or individuals that have the ability to fully test before use. The Politics of Breastfeeding: When Breasts are Bad for Business by Gabrielle.... None of the items are for clinical use, except after testing and certification by competant authority.