How we breathe, what we breathe, and what we ought to breathe. / by M. D.

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From Monday 5 October, all bags will be searched before entry to help keep Wellcome Collection safe and secure. Please allow extra time on arrival. 

Due to essential system maintenance, the library's online requesting service will be unavailable from 2pm on Friday 2 October until 10am on Monday 5 October. You can still search the catalogue as usual. We apologise for any inconvenience.

We're running paid user research studies to improve Wellcome Collection online

Take part in research

The four thematic browsing category pages (subjects, places, people & organisations, types & techniques) become accessible.

Subject sub-category pages become accessible, and the subjects category page gains a sub-category menu.

Heating and ventilation industry

Works from the collections

How we breathe, what we breathe, and what we ought to breathe. / by M. D.