Conclusion

Fine airborne particles cause respiratory problems, increase mortality from cancer and respiratory or cardiovascular diseases, and chronic exposure to them is the primary health threat linked to air pollution in France and Europe. Protecting against them is therefore a public health issue. To achieve this, collective action can be taken by improving the efficiency of emission sources (engines, chimneys, etc.) or by equipping them with filters. It is also possible to take action at the individual level, for example, by wearing face masks. These various filters are largely manufactured using fibrous materials, and it is essential to understand and control the relationship between a filter’s textile structure and its performance in order to optimize its effectiveness. A filter’s performance is determined by its ability to trap particles (filtration efficiency) and to allow the gaseous effluent...