Lung Model Demo Kit
Product Code : LSK-BL-10198
Lung Model Demo Kit (SKU LSK-BL-10198) is a set of parts for building the classic bell-jar lung model: a bell jar, single-hole bung, Y-shaped adapter, balloons, cable ties and a latex rubber sheet. Pulling the sheet down inflates the balloons and pushing it up deflates them, showing how the diaphragm moves air in and out of the lungs. It suits middle-school and Class 10–11 biology. Biology departments, tender contractors and distributors can order it through Science Lab Supplies in Ambala, India.
Specifications
Each component of the bell-jar lung kit has its own row below. In short, the balloons are fixed with cable ties onto a Y-shaped adapter pushed into the single-hole bung, and a latex rubber sheet attached across the bottom of the bell jar acts as the diaphragm that students pull and push.
| Specification | Value |
|---|---|
| SKU | LSK-BL-10198 |
| Chest cavity | Bell jar |
| Bung | Single-hole bung |
| Adapter | Y-shaped adapter that fits into the bung |
| Lungs | Balloons |
| Balloon fixing | Cable ties hold the balloons on the adapter |
| Diaphragm | Latex rubber sheet |
| Diaphragm fixing | Attached to the bottom of the bell jar with a rubber band or string |
| Operation | Pull the sheet down to inflate the balloons, push it up to deflate them |
| Demonstrates | Effect of the diaphragm on the lungs |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Lung Model Demo Kit
The model shows that breathing is driven by pressure change: lowering the rubber-sheet diaphragm enlarges the space inside the jar, pressure falls and air flows into the balloons; raising it reverses the flow. Students see inhalation and exhalation as a working cause and effect rather than a diagram.
- Class 7 and Class 10–11 science and biology (NCERT, respiration and breathing): demonstrating the role of the diaphragm.
- Student assembly activity, with spare one-hole bungs available from the Rubber Stoppers of Various Diameters with Holes.
- Linking the model to real measurements of airflow with a Lung Capacity Meter.
- Comparing the simple model with the full anatomy on a Human Respiratory System Model.
Check the latex sheet for tears before each class, and anyone with a latex allergy should not handle it.
Standard Scope of Supply
The kit contains a bell jar, a single-hole bung, a Y-shaped adapter that fits into the bung, balloons, cable ties to hold the balloons on the adapter, and a latex rubber sheet that is attached to the bottom of the bell jar with a rubber band or string.
Packing, MOQ and Lead Time
A quotation can cover a single kit for a teacher's demonstration or a kit for every group so that students assemble their own models. Science Lab Supplies sets out the packing, delivery time and price for that quantity, and spare latex sheet can be added to the same quote.
Using its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Zambia, Rwanda, South Africa, Qatar, Sri Lanka and Vietnam. Reach the team from the contact page, list the kits in the enquiry cart, or follow the lab tender page if the purchase is going to tender.
Frequently Asked Questions
How does the Lung Model Demo Kit work?
Pulling the latex sheet at the bottom of the bell jar downwards makes the balloons inflate, and pushing it upwards makes them deflate. The sheet plays the part of the diaphragm and the balloons play the part of the lungs.
What parts are included?
The kit includes a bell jar, a single-hole bung, a Y-shaped adapter, balloons, cable ties for fixing the balloons and a latex rubber sheet, which together make a complete lung model demonstration once assembled.
Can the latex sheet be replaced?
Yes. The Latex Rubber Sheet offered separately is translucent and natural in colour and measures 1 m x 1 m x 0.25 mm, so a piece can be cut to fit the bell jar when the original sheet wears out.
Who supplies the Lung Model Demo Kit?
Kits are packed and dispatched by Science Lab Supplies, an Ambala, India supplier of biology demonstration equipment, for schools, colleges and distributors that want ready-to-assemble respiration models.
Related Lung Models and Breathing Apparatus
These items either replace a part of the kit, offer a ready-built or anatomical version of the same demonstration, or measure real breathing, so they can go on one quotation with the kit and give students a complete respiration lesson from model to measurement.
- Latex Rubber Sheet — translucent natural-colour sheet, 1 m x 1 m x 0.25 mm.
- Human Lung Model in Bell Jar — two balloons on a Y-tube in a bell jar chest cavity.
- Human Lung Demonstration Model — two rubber balloons, rubber stopper and bell jar, 17 x 17 x 20 cm.
- Bell Jars — baseplate with tap, glass bell jar and battery-operated bell for vacuum demonstrations.
- Kit for Experiments with Breathing — lung model, vacuum pipette and lime water.
- Functional Human Respiratory System Model — moving rib cage with major thoracic organs, 41 x 17 x 71 cm.
- Lung Model — PVC model with removable parts at 3–4 times magnification.
- Peak Flow Meter — universal reusable mouthpiece with instructions and a self-monitoring chart.
Browse the full Biology Lab range, the Human System Model range for respiratory anatomy models, or all biology lab equipment.
Last updated: 9 October 2026
