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Infection Control for Viral Haemorrhagic Fevers In the African Health Care Setting "If surgical masks are not available, use cotton masks made from four or five layers of cotton cloth sewn together. Use a different colour for each side of the mask. This will help health care workers quickly identify which side should be worn inside."
Masks for Influenza Patients: Measurement of Airflow from the Mouth INOUYE SAKAE et. al. Jpn J Infect Dis 59, 3, 179-181 (2006) A study of the effectiveness of three simple commercially available (in Japan) face masks to reduce air speed of coughing and blowing. All masks, including a 16-ply, 10.7 g weight cotton mask reduced air speed of cough to less than 1/10.
- Includes full coverage, filter pocket, simple coverage, and CDC no coverage designs