Wash and dry your hands
Clean the screen thoroughly with a microfiber cloth
Use a dust remover or tape to lift any trapped dust
Peel back the screen protector slightly if needed
Reapply the protector slowly from one edge to the other
Press bubbles outward with a credit card or squeegee wrapped in a cloth
Push air toward the nearest edge
Use light heat from a hair dryer on low if the protector allows it
Let the adhesive settle for a few hours
Replace the protector if bubbles remain from dust or damage