The set includes:

Healthy airway — Light pink in colour, this model shows an open, flexible airway.

Inflamed airway — Darker pink in colour to show low level chronic inflammation, this airway is narrowed and rigid.

Inflamed and constricted airway with mucus — Deep red in colour with constricted muscle bands and a narrowed airway clogged with thick, sticky mucus.

Convenient Travel Pouch — Carry your models and a stand in this durable, easy to clean travel pouch.