The global contactless respiratory measurement market is projected to grow from USD 1,695.3 million in 2025 to USD 2,907.6 million by 2035, at a CAGR of 5.5%. By technology, radar & microwave sensors will lead with a 34.7% market share, while by application, homecare & remote patient monitoring will dominate with a 37.4% share in 2025.