MERIGLARE Inspiratory Exerciser, 5000ml Apparatus Vital Capacity Breathing Trainer, Lung Exerciser Improvement…

EASY TO USE – Oxygen Pro with an inhaler cup, position the cup over your mouth with your finger on the trigger at the top, press the trigger gently to regulate the oxygen flow to suit your needs and breathe.
MULTI PURPOSE OXYGEN CYLINDER – Improves concentration when studying and gaming, increases oxygen levels in high altitudes, provides energy when engaged in physical activities and improves air quality.
IMPROVES BREATHING – Oxygen Pro is a source of 99.5% Oxygen for those suffering from poor health or working in areas with dust, humidity, poor ventilation, and/or chemicals.