Scientists Find Best Home Materials for Masks

Coronavirus News

Finally! peer-reviewed research from the American Chemical Association giving an in-depth overview of the effectiveness of DIY mask materials. The most important takeaways are –

  • Masks need to be sealed to be effective. Surgical style masks and bandannas provide ample airflow through the sides and lose the vast majority of their filtration power simply to the air flowing in the sides.
  • Materials matter. Silk and chiffon were the best at filtering fine particles, but a multi-material mask with alternating layers worked the best.
  • Correctly assembled and fitted, cloth masks can repel >80% of even the smallest aerosol particles.

Aerosol Filtration Efficiency of Common Fabrics Used in Respiratory Cloth Masks

The emergence of a pandemic affecting the respiratory system can result in a significant demand for face masks. This includes the use of cloth masks by large sections of the public, as can be seen during the current global spread of COVID-19.

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