Disposable face masks, so called surgical masks, are often used to protect the product or process, but also to protect the worker (PPE).
In the cleanroom industry, filtration efficiency is the most important criterion. In addition, the wearing comfort properties, such as breathing air resistance and fit, as well as skin compatibility also play very important roles. The protective effect or the filtration efficiency (particulate and bacterial) depends largely on the choice of materials. Face masks made of materials containing paper/cellulose are not suitable for use in cleanrooms, as the risk of contamination is too high due to the low abrasion resistance and increased inherent particle emission. Experience has shown that synthetic materials such as non-woven fabrics made of polypropylene, polyethylene and polyester filaments are most suitable.
When defining a disposable face mask, its width is also a criterion that should not be neglected. It should cover the entire width of the face and neck, so that skin and beard hairs are completely covered.