Exhibit 99.1 Inogen Announces First Quarter 2024 Financial Results GOLETA, Calif., – May 07, 2024 – Inogen, Inc. (Nasdaq: INGN), a medical technology company offering innovative respiratory products for use in the homecare setting, today announced financial results for the quarter ended March 31, 2024. “We are pleased to be off to a solid start at Inogen in 2024. Looking forward, we remain focused on positioning the business for revenue growth, improving our operating discipline to drive long-term profitabi ...