The invention relates to a protector for stomata made up of two rectangular sheets with a small, likewise rectangular void in their central area joined at one of the ends, being cover and base, respectively, which fixes to the lower face of the upper sheet or cover and at the same angle of attachment a third sheet, this sheet being longitudinally shorter, narrow and made from a transpirable material like a filter, with the end opposite to the fixed end being free like a tab, which fits into a strap arranged for such purpose on the inner face of the base sheet. Emerging from the upper face of the cover, above the central void, there is a final sheet which, in terms of size and shape, acts as a diffusing shield with the four sides being somewhat open.
