For certication and testing before any use This Covidien Valleylab Optimummtheater Suction with Filter is an essential tool for any hospital surgery theater. It has been designed to provide efficient and effective suction during surgical procedures. The unit is made by Covidien, a trusted name in the medical equipment industry. This unit type is a single unit, and the package includes one suction with filter. It is a general surgery tool that has not been modified in any way. The Optimummtheater Suction with Filter is made in the United States, ensuring the highest quality standards. The brand name speaks for itself, and this is a must-have for any medical practitioner. DISCLAIMER: Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by purchasing this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer. Note: All medical items are sold to the best of our testing facilities, it will be the buyers responsibility to have these items tested/certified/calibrated before clinical use US -The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.