Spare Oxygen Mask and Tubing

【You Will Get]】1Pcs Adjustable air outlets lung exerciser, 2Pcs Stainless steel balls, 1Pcs Lanyard, 1Pcs Pocket, 1Pcs Instruction manual.
【Upgrade Style】 The difficulty and ease of exhalation are adjusted by rotating the size of the air outlet, meeting the needs of different stages, and better training lung capacity for Easier drainage of mucus.
【OPEP Globally Trusted Therapy】Mucus breathing remover is scientific, therapeutic by exercise improve lung capacity and expands airway to loosen mucus discharge physio methods. Indicated for the treatment of asthma, bronchitis, cystic fibrosis, and mucus drainage.