We study D+s decays to final states involving the η with a 482 pb−1 data sample collected at √s = 4.009 GeV with the BESIII detector at the BEPCII collider. We measure the branching fractionsB(D+s →η X) = (8.8 ± 1.8 ± 0.5)% and B(D+s →ηρ+) = (5.8 ± 1.4 ± 0.4)% where the first uncertainty is statistical and the second is systematic. In addition, we estimate an upper limit on the non-resonant branching ratio B(D+s →ηπ+π0) < 5.1% at the 90% confidence level. Our results are consistent with CLEO’s recent measurements and help to resolve the disagreement between the theoretical prediction and CLEO’s previous measurement of B(D+s →ηρ+).