🔅 DIY Respirator #2 (improved version)

The first version of the respirator: Surely everyone already knows that an ordinary medical mask is a very unreliable means of protection against virus infection. Air chooses the path of least resistance, and most often this path runs through the cracks between the face and the mask. In addition, exhaled air moisturizes the surface of the mask, which creates an ideal environment for the survival of microorganisms. Based on the foregoing, a respirator with an intake and exhaust