Can burning moxa sticks indoors prevent COVID-19?

Under normal circumstances, burning moxa sticks indoors cannot prevent COVID-19. The detailed explanation is as follows:

The novel coronavirus primarily spreads through respiratory droplets and close contact. The smoke produced by burning moxa sticks indoors cannot effectively block these transmission routes. Although burning moxa releases certain volatile components, current scientific research has not confirmed any definite inactivating effect on the SARS-CoV-2 virus. Moreover, the concentration of smoke generated by moxa sticks is limited and cannot fully cover all indoor spaces or maintain continuous antiviral activity. For some individuals, inhaling moxa smoke may irritate the respiratory tract, causing discomfort such as coughing and chest tightness, which could negatively affect respiratory health.

To prevent COVID-19 in daily life, it is essential to prioritize scientifically proven protective measures. Ensure regular indoor ventilation by opening windows daily for at least 30 minutes to reduce the risk of viral accumulation. Wear masks properly when going out and wash hands with disinfectant immediately upon returning home. Maintain a regular sleep schedule and a balanced diet to strengthen your immune system. If burning moxa sticks is desired, it should only be done in well-ventilated areas, avoiding prolonged use in enclosed spaces. Individuals with respiratory conditions should尽量 avoid exposure to moxa smoke to ensure that protective measures remain safe and effective.