What is the best disinfectant which is safe to breath by humans?

Hydrogen peroxide is considered one of the best disinfectants that is relatively safe for humans to breathe in low concentrations. It effectively kills bacteria, viruses, and fungi while breaking down into water and oxygen, making it environmentally friendly. When using hydrogen peroxide for disinfection, it's important to ensure proper ventilation and to avoid inhaling concentrated vapors. Always follow safety guidelines and use it in appropriate dilutions for effective disinfection.