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Lungs Model in Bell Jar

In StockBulk orders available

SKU: BIO-120

The classic breathing demonstration: balloon lungs inside a bell jar with a rubber diaphragm at the base. Pull the diaphragm down and the lungs inflate; push it up and they deflate, just as the chest does during breathing.
Bell jar, Y-tube, balloon lungs and rubber diaphragm
Shows how the diaphragm drives breathing

BIO-120

Product Description

Best forClass 6–11

BoardsCBSE · ICSE

UseWorking model

Made inIndia

The classic breathing demonstration: balloon lungs inside a bell jar with a rubber diaphragm at the base. Pull the diaphragm down and the lungs inflate; push it up and they deflate, just as the chest does during breathing.

How it works

Pull the rubber sheet at the base downwards
The space inside the jar increases and the balloons fill with air
Push the sheet up and the balloons empty again

What students learn

Explain the role of the diaphragm in breathing
Relate chest volume to air pressure
Describe inhalation and exhalation

Try these experiments

Show inhalation by pulling the diaphragm down
Show exhalation by pushing it up
Compare the model with the human chest and lungs

Curriculum fit

Board	Class	Chapter / topic
CBSE	10	Life Processes — respiration
CBSE	11	Breathing and Exchange of Gases — mechanism of breathing

In the box

Bell jar with rubber stopper
Y-tube with two balloons as lungs
Rubber sheet diaphragm fitted at the base

Pairs well with

Human Lungs Model - SmallBIO-118

Human Respiratory System ModelBIO-117

Questions

Frequently Asked Questions

The Lungs Model in Bell Jar is manufactured by Samtech Instruments (JAYSEE brand), a science laboratory equipment manufacturer based in Ambala Cantt, Haryana, India, producing educational lab apparatus for schools and institutions for over 20 years (since 2002).

The Lungs Model in Bell Jar suits secondary and senior secondary students (typically Classes 8 to 12) for both teacher demonstrations and student practicals, aligned to CBSE, ICSE and State board science curricula.

Yes. As a direct manufacturer, Samtech Instruments offers competitive bulk pricing for schools, dealers and institutions, with GST invoicing and full support for government (GeM) tenders. A minimum order quantity applies; message us on WhatsApp for a quote.

Pricing for the Lungs Model in Bell Jar is shared on enquiry, since it depends on quantity and specification. Send the model name on WhatsApp (+91 86838 78878) and we will share the current price, availability and lead time.

Yes. The Lungs Model in Bell Jar is made in-house at our Ambala Cantt facility and quality-checked before dispatch. We ship pan-India in about 4 to 5 working days; bulk and institutional orders are packed securely for safe transit.

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The Manufacturer

Made in India by Samtech Instruments

Samtech Instruments (JAYSEE brand) is a trusted manufacturer of school science and STEM laboratory equipment, based in Ambala Cantt, India, serving educators for over 20 years (since 2002). We supply a wide range of physics, chemistry, biology, astronomy and renewable-energy teaching kits to schools, dealers and institutions across India, with competitive bulk pricing and full support for government (GeM) tenders.

Learn more about Samtech Instruments →