This sources sought notice is market research, not a request for quote, to assess qualified SDVOSB, VOSB, small/emerging small, and other-than-small firms for supplying humidifier heater bases, sensor cartridges, and expiratory heater wire adapters or equals. The items will support the Captain James A. Lovell Federal Health Care Center in North Chicago, IL, and must meet specified salient characteristics for invasive/noninvasive ventilation and nasal high-flow therapy, including internal temperature probes, single/double heated circuit compatibility, touchscreen interface, and built-in alarms. Compatibility is required with FHCC’s existing ventilation/gas-flow devices, specifically Medtronic 980 ventilators, Philips V60 BiPAP devices, and Nihon Kohden 330, 440, and 550 ventilator systems. Interested firms should respond in writing with company/contact details, SAM Unique ID and Tax ID, applicable FSS/SEWP contract number, business-category qualification, capability statement, and manufacturer authorization as an authorized distributor. The applicable NAICS code is 339112, Surgical and Medical Instrument Manufacturing, with a 1,000-employee size standard, and responses will inform the government’s acquisition decision.