Spray-tips are available with four apertures: A (1.00 mm) provides a heavy spray for large lesions and superficial desquamation. B & C (0.75, 0.55 mm) with a medium output for general application and D (0.45 mm) with a fine spray for smaller lesions.
Select a spray aperture appropriate for the lesion to be treated. In depth freezing is best obtained, when the spray aperture is close to the lesion (5-10 mm distance). Superficial desquamation is obtained using the soft spray tip at approx. 5 cm distance.