Inspiration Expiration comparator

Ref:554047
Sécurité renforcée grâce au clapet anti-retour
Adapté au collège
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Data sheet Inspiration Expiration comparator

Description

Objective: Compare the respective contents of carbon dioxide: - of the inspired air (atmospheric content) - of the air expired (rich in respiratory CO2). Principle: A Y-shaped connector with non-return valves(safety!) imposes the direction of flow of the gas streams After some expirations inspirations, the student note that the lime water disorder appears much faster in the expiration bubbler: the exhaled air is rich in CO2.

Content

- un socle,
- deux barboteurs, velcro de maintien sur le socle,
- deux bouchons 2 trous n° 10 avec embouts mâles et femelles,
- deux tubes et deux bouchons un trou n° 6 avec embouts,
- un raccord en Y avec clapets,
- deux embouts buccaux (peuvent être désinfectés).

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