Molecular gas depletion timescale (in Myr) due to gas consumption by star formation activity (t_dep, SF = M_mol/SFR; abscissa) and gas removal by the outflow (t_dep,out = M_mol/Ṁ_out,mol; ordinate). IRAS F08572+3915 is shown as a star, and other (U)LIRGs taken from the literature are shown as circles (Pereira-Santaella et al. 2018; Fluetsch et al. 2019). The points are color-coded according to the escape fraction f_esc, defined as the mass fraction of the molecular gas in the outflow that can escape the gravitational potential of its host. Diagonal line represents t_dep, SF = t_dep, out or, equivalently, a mass loading factor of η = 1. Vertical lines show where the data points would move if we calculate the depletion time based on the rate of molecular gas ejected by the outflow that can escape the gravitational potential of its host (i.e., Ṁ_esc,mol = f_esc × Ṁ_out,mol).