Unit, VO2max flowmeter ID28 (2 pieces), RMR flowmeter ID18, nose clip (2 pieces), V2 face mask VO2max (3 pieces: Small, Medium, Large), V2 face mask headgear (2 pieces: Small/Medium, Large), RMR face mask (5 pieces), permapure filters (5 pieces), digital flowmeter handle, Heart Rate monitor & receiver, RMR flowmeter adapter, VO2max flowmeter adapter, Calibration syringe 3L, cardboard mouthpieces adult (50 pieces), cardboard mouthpieces paediatric (50 pieces),antibacterial filters (5 pieces), Software, User Manual.