ITEM NAME:Deep Breathing Lung Capacity Exerciser Hygienic Respiratory Spirometry Traine@.Item Type: Breathing Exerciser. Complete Instructions Provided. Release the "Mouth Piece" slowly and adjust the breath after taking a deep breath. 600 ml/cc, 900 ml/cc, 1200 ml/cc. 1 Pcs Pipe. 1 Pcs Exercise Main Body.
