Absolute Antibody's Anti-Fel d 1 [REGN1909] is a Human monoclonal antibody. The Anti-Fel d 1 [REGN1909] Antibody was generated using CH2 as the antigen. It reacts with Feline. This antibody has been shown to work in applications such as: Binding, EIA, Immunoassay, Surface Plasmon Resonance, Block/Neutralize/Inhibit, ELISA, Functional Assay, and Other.