1. Control of airborne infectious diseases in ventilated spaces by Peter V. Nielsen Interface Volume 6(Suppl 6):S747-S755 December 6, 2009 ©2009 by The Royal Society

2. Two patients (life-size manikins) in a hospital ward. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

3. Balcony for ‘open-air treatment’ of pulmonary diseases in a former TB hospital (Skoerping, Denmark). Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

4. (a) Mixing ventilation from a wall-mounted diffuser, (b) vertical ventilation from three ceiling- mounted diffusers and (c) vertical ventilation from a large textile terminal. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

5. (a) Exhalation through the mouth; (b) exhalation through the nose; (c) coughing. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

6. The figure shows a manikin located in a downward air flow. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

7. Full-scale room with displacement ventilation. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

8. Two persons (manikins) in a full-scale room. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

9. Air supply pillow intended for a hospital bed. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society

10. Retractable hood design. Peter V. Nielsen J. R. Soc. Interface 2009;6:S747-S755 ©2009 by The Royal Society