The suction tube of the Dechoker is in the middle of the face mask. It may injure the tongue. It occasionally touches the hard palate with the outside edge of the tube. Insertion of the tube can rub against the tongue or hard palate and cause an abrasion. This is inconsequential to the choking and dying patient. Any abrasion will heal promptly without treatment. One or two pulls of the device will not cause negative pressure pulmonary edema. It is not used long enough to cause pulmonary edema. Face mask ventilation used for prolonged periods does not cause pulmonary edema.