l For training the simulated person of sputum suction operation, the simulated sputum can be added to make the training process more real.

l   The exact position of the suction tube after insertion can be observed with the semi-transparent structure.

l   During the operation, the real sense of presence can be obtained by using simulated sputum. The sputum aspiration can be practiced in the oral cavity, nasal cavity and tracheotomy.

l   Simulated sputum is made of water - based gelatin, safe and non - toxic.

l True internal anatomy, the length of the suction tube insertion can be confirmed in accordance with clinical practice.

l  Simple maintenance. After the training is completed, the inner part of the model can be removed and washed.