The mask has been designed to be used in conjunction with the Optichamber or Prochamber chamber in cases where the patient does not cooperate with the administration of the aerosol drug. CE marked. Class I, non-sterile . The mask has an anatomical oronasal shape. It adapts to the anatomy of the face with light pressure and seals perfectly, preventing air from entering. It is made of medical-grade silicone and is latex-free. It is transparent and flexible so as not to damage a child's delicate skin. Low dead volume. Weight 18 grams. Technical specifications: Adult: Large size, suitable for children over 5 years of age and adults. Child: Medium size, suitable for children approximately 12 months to 5 years of age. Neonate: Small size, suitable for children approximately 1 to 12 months of age. INSTRUCTIONS FOR USE Connect the mask to the mouthpiece of the inhalation chamber. You must clean the mask after use. Follow the instructions for use of the chamber . Recommended ages : Neonate: 1 to 12 months ; Infant: 12 months to 5 years ; Adult: Children over 5 years and adults. PRECAUTIONS AND WARNINGS Do not let children play with the masks. If you are not sure how to use this product, consult your pharmacist or doctor. STORAGE AND EXPIRATION Remove the mask from the mouthpiece. Soak the mask for 15 minutes in warm water with liquid detergent. Rinse with clean water and shake off excess moisture. Air dry or dry with a clean cloth. Store your mask in its original packaging or in a suitable container when not in use. You should replace the mask after one year of continuous use. LATEX ALLERGY No information is available on its latex content.