The three balls spirometer is mainly used for normal breathing restored trainings for the patients who has just done splanchnocoele operation

Double base, can be blown and sucked

Composition: Consists of shell, ball, tube and mouth

Capacity: Inhale 600cc, 900cc, 1200cc; blow 1000cc, 2000cc, 3000cc

Material: PS, ABS, PP, PU, EVA

Product size: 137*65*165mm