Fig. 2From: Deposition efficiency of inhaled particles (15-5000 nm) related to breathing pattern and lung function: an experimental study in healthy children and adultsPaired DF of particles 30–50 nm with 1900–2700 or 3500–5000 nm particles. The figure illustrates that the DF of small particles correlates with the DF of larger particles up to a diameter of ~3500 nmBack to article page