Comparison of dust reddening inferred using Balmer and Paschen lines. Left panel: E(B-V) computed assuming case B hydrogen recombination and using lines of the Paschen series (Pa9, Pa10, Pa11 and Pa12 as colour coded in the legend) versus E(B-V) from the Balmer decrement. Central panel: Pa9λ9229/Hβ/ versus Pa9λ9229/Hα line ratios. Dotted gray line is the O’Donnell (1994) attenuation curve. Right panel: Comparison of E(B-V) inferred from the dust attenuation corrected Pa9λ9229/Hβ and Pa9λ9229/Hα ratios. Dashed black lines indicate the 1:1 relations. Symbol sizes increases with increasing S/N, starting from S/N = 5 up to 16.