What does ozone do to humans?

Could you elaborate on the potential effects of ozone on human health? Is ozone harmful in certain concentrations? How does it affect our respiratory system? What are the symptoms of ozone exposure? Are there long-term health implications of ozone inhalation? What steps can we take to reduce our exposure to ozone? Is there a SAFE level of ozone exposure for humans? Understanding the impact of ozone on our bodies is crucial for preventing adverse health outcomes. Could you provide a concise yet comprehensive overview of ozone's effects on humans?