Protective cap for a dispenser, and discharge device for discharging pharmaceutical and/or cosmetical liquids

A discharge device comprising:

• a dispenser for discharging a pharmaceutical and/or cosmetical liquid, the dispenser including a liquid reservoir and an outlet opening through which the liquid can be discharged into a surrounding atmosphere;
• and
• a protective cap with an outer cap and an inner element inserted therein, wherein at least one ventilation channel providing communication between an interior of the protective cap and an external environment is formed between the outer cap and the inner element, and a tamper-evident safety device with a first segment which is to be removed irreversibly before a first use, wherein the first segment to be removed serves as a shut-off element which is to be separated irreversibly from the protective cap before the first use and by which the at least one ventilation channel is directly closed in an airtight and germproof manner by the first segment before removal of the first segment, wherein the shut-off element directly prevents airflow through the at least one ventilation channel before removal of the shut-off element.