Air filtering system for an aircraft

An air filtering system for an aircraft and comprising:

• an air box, which has at least one inlet opening, through which air to be filtered flows into the air box, and at least one outlet opening, through which filtered air flows out of the air box;
• and
• an air filter, which is arranged inside the air box and is interposed between the inlet opening and the outlet opening;
• wherein the air box has two opposite twin mounting openings, which are obtained in two parallel and opposite walls of the air box and are shaped to allow the air filter to be inserted and removed through each one of them;
• and
• wherein two removable doors are provided, each comprising an outer panel configured to overlap a respective mounting opening to close the mounting opening;
• wherein each door comprises two inner appendages, which project from two opposite ends of the outer panel and are perpendicular to the outer panel so as to be arranged on two opposite sides of the air filter, when the door is coupled to the respective mounting opening, and have a shape that is complementary to the two inner appendages of the other door so as not to overlap the inner appendages of the other door, when both doors are coupled to the respective mounting openings.