Porous stones designed for pet hair removal gently grab and pull embedded hairs from fabric and carpet fibers.

Purchase a pumice stone (often sold for feet, use a dedicated one) or a specialized pet hair removal stone/brick.
Lightly drag the flat edge of the stone across the upholstery or carpet in short strokes.
The stone's texture will catch and pull the hairs, gathering them into clumps.
Use light pressure to avoid damaging the fabric.
Vacuum up the collected hair clumps.

N/A - Utilizes a slightly abrasive tool specifically effective at dislodging embedded pet hair.

Use Pumice Stone or Specialized Pet Hair Stone