How do I remove the protective wrapping from the filters before first use?

Make sure the air purifier is OFF and unplugged. Press the two hand symbols on the front grille to release it and pull the grille toward you to remove it. Grasp the sides of the filter frame near its top end and pull outward. Remove the protective wrap from all filters including the pre-filter, then place the HEPA filter(s) back in with the removal tabs facing outward and position the pre-filter on top, tucking its edges into the tabs around the filter frame.