To avoid air bubbles while installing wallpaper, it is important to properly prepare the surface and the wallpaper, use the right tools, and work carefully and methodically. Begin by smoothing the wallpaper onto the surface, starting from the top and working your way down, using a wallpaper smoothing brush or seam roller to remove any air bubbles as you go. If you do encounter an air bubble, use a pin or utility knife to carefully prick the bubble, then use the smoothing brush or roller to gently press the wallpaper back into place.

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