Miniature Lung Function Model

Miniature Lung Function Model

Miniature Lung Function Model

Regular price $33.00

Use this small model to introduce and reinforce the concept of pressure as a driving force in respiration. The lungs (3" balloons) are housed in a hard plastic bell jar (3-1/4 x 2-3/4") representing the thoracic cavity. Unlike other models, the diaphragm is molded to fit securely on the bell jar without further attachments. It is also made of thick, durable vinyl that resists thinning and tearing over time.

Pull down on the diaphragm to decrease the pressure in the thoracic cavity and increase its volume. These changes cause higher-pressure atmospheric air to fill the lungs.



Shipping is Extra and will be charged separately. Shipping Quotes will be given upon request.


All shortages, defects and deficiencies must be reported within 7 days of receiving the shipment. Merlan Scientific cannot assume responsibility for shortages reported after this period.

On receiving goods, check your packing slip and the package contents carefully. Please report any damaged items immediately and keep all shipping materials for inspection. If you have any questions please call 1-800-387-2474 or write us at


Before returning any item to Merlan Scientific, please call for a Return Authorization Number. Shipments received without authorization may be refused.


Merlan Scientific warrants that each product will be free of defects in materials and workmanship for a period set forth in its published user manuals for its system products and for a period of one (1) year for its component products. The warranty commences on the date the product is shipped by Merlan Scientific. Merlan Scientifics’ sole liability and responsibility under this warranty is to repair or replace any defective product, which is returned to it by the buyer, and which Merlan Scientific determines qualifies for repair or replacement under the terms of the applicable warranty. The product returned to Merlan Scientific for warranty service will be shipped to Merlan Scientific at the buyers expense and will be returned to buyer at Merlan Scientifics’ expense. In no event shall Merlan Scientific be responsible under its warranty for any defect, which is caused by negligence, misuse or mistreatment of a product, or for any unit, which has been altered or modified in any way. The warranty of repaired and replacement products shall terminate with the original warranty of the product.

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