Protection materials and technologies

Low resistance to breathing

Noticeable lowering of breathing resistance is reached when two components in the modern filtering half-mask are available.

  1. Electret filter, whose thinnest layer is enough for effective air filtration (for example, 3M™ Media).
  2. Highly effective expiratory valve which can ensure easy outflow of exhaled air (for example, expiratory valve 3М™ Cool Flow™ ).