Comparison between the Paschen and Balmer line luminosities of red quasars and unobscured type 1 quasars (gray squares). The dashed red lines mean the best-fit lines between the Paschen and Balmer line luminosities of unobscured type 1 quasars. The blue stars and red circles indicate the dust-corrected and uncorrected luminosities of the red quasars, respectively. The blue and red arrows represent the upper limits of dust corrected and uncorrected L_{H β} vs. L_{P β} of 0036−0113, 0915+2418, 1307+2338, 1532+2415, and 1656+3821, respectively, and L_Hβ vs. L_{P α} of 0817+4354 and 1307+2338, respectively. The left two panels show the comparison of the Pβ and Balmer line luminosities, and the right two panels compare the Pα with the Balmer line luminosities. Before extinction correction and at a given Paschen line luminosity, the Balmer line luminosities of red quasars are much weaker than those of unobscured type 1 quasars, while extinction corrections bring the red quasars close to the unobscured type 1 quasars.