Fig. 2From: Comparison of aerosol delivery across combinations of drug delivery interfaces with and without concurrent high-flow nasal therapya A facemask, utilized with an aerosol chamber positioned on an adult head model, was connected to a breathing simulator via a collecting filter, with and without concurrent HFNT. b A mouthpiece, utilized with an aerosol chamber positioned on an adult head model, was connected to a breathing simulator via a collecting filter, with and without concurrent HFNT. The VMN was positioned in the aerosol chamberBack to article page