The ultraviolet-absorption spectrum and the self-reaction of CHF₂O₂ radicals have been studied in the gas phase at 298 K using the pulse radiolysis technique and long-pathlength Fourier transform infrared spectroscopy. Absorption cross sections were quantified over the wavelength range 220-280 nm. The measured cross section near the absorption maximum was σ_CHF2O2 (240 nm) = (2.66 ± 0.46) × 10^-18 cm² molecule^-1. The absorption cross section data were used to derive the observed self-reaction rate constant for the reaction CHF₂O₂ + CHF₂O₂ → products, defined as d[R]/dt = 2k_1obs[CHF₂O₂]², k_1obs = (5.0 ± 0.7) × 10^-12 cm³ molecule^-1 s^-1 (± 2σ). The only carbon-containing product observed by FTIR spectroscopy was FC(O)F. These results are discussed with respect to previous studies of peroxy radicals.