To protect furniture and surfaces before whitening, remember to do the following:

• Cover the window and door jambs with paper tape by pressing well to make it adhere to the knot that the paint does not take out.
• If you have furniture, move them to the center of the room and when it's not possible because heavy bikes simply unload them from the wall and cover them with a nylon cloth
• Cover the floor with curtains and tape the skirting boards
• Remove the plates from the sockets with a screwdriver and taped sockets and switches