HTS Code for entrainment elbow or nebulizer elbow

HTS Code :

The merchandise under consideration is a specialized Elbow w/ NIVO Port – 5 Pack (#1120967/APU1120967). It is a snap-type plastic elbow with a safety valve and a NIVO (Non-Invasive Ventilator Outlet) port covered by a port cap. Based on the brochure, the elbow is a part of an AF541 mask (oro-nasal mask). The brochure indicates that the elbow is both an entrainment elbow (EE) and a nebulizer elbow (NE). You explain that the entrainment feature is a safety valve that opens to the atmosphere if therapy pressure is removed, allowing for normal breathing to the atmosphere. The elbow is imported in a five-piece pack. It connects a breathing circuit with the mask and allows the air to reach the patient. These specific elbows are designed for and should only be used with a single limb circuit with Respironics’ BiPAP (bilevel positive airway pressure) non-invasive ventilator, such as DreamStation BiPAP S/T. This elbow requires the use of an exhalation feature in the circuit, such as a single limb ISO5356 NIV circuit. It cannot be used with a dual limb/critical care ventilator.^[1]

^[1]. https://rulings.cbp.gov/ruling/N320095