Robin Monotti on Gab: "THE NOSE: "Particles larger than 3μm have a maximum deposition in the anterior part of the nose (nasal valve). Particles smaller than 3μm & larger than 0.5μm ar..."

Robin Monotti on Gab: "THE NOSE: "Particles larger than 3μm have a maximum deposition in the anterior part of the nose (nasal valve). Particles smaller than 3μm & larger than 0.5μm ar..."