Air can be a precious commodity to a Trooper. Internal Bucket conditions vary from warm to even warmer. As condensation builds up, eye lenses may fog over.
Using a Dremel tool, I carved out the grille holes and used a black nylon material on the inside to cover them up. The material allows air to pass through the holes. The effect is more noticeable outside than indoors - i.e. in a breeze. Perhaps it's time to equip this Bucket with a ventilation fan (CPU fan).