Based on scientific article, improving air ventilation could help to reduce the contaminants level and improves indoor air quality. By operating a big fan, premises can effectively increase ventilation in your area. Big fan could enhance the air circulation in bigger area coverage and move virus particles in the air from inside to outside of the premises. As such, it may provide effective protection against all health hazards that may be caused by indoor air pollution such as Coronavirus. Even though we are wearing a mask and practising social distancing, the virus still moving in the air. Hence, the fan functions to move the viruses and provide fresh air.