"This oil is one of the best to apply in times of colds and flu. Its strong antibacterial and antiviral properties not only help fight infections of the respiratory tract. The essential oil of lemon cleanses and disinfects the ambient air and frees it of germs, Therefore, it can be used effectively to avoid contagion, and for this it is appropriate applied by means of diffusers.
The effectiveness of this form of environmental disinfection and how it can be used in hospital hygiene was demonstrated by a French physician, Dr. Jean Valnet, a renowned aromatherapist. Valnet's studies showed that nebulized lemon oil was capable of killing meningococci in 15 minutes, typhus bacilli in 1 hour, staphylococci in 2 hours, and pneumococcus in 3 hours. It has also been shown effective in employment against (MRSA). But also the immune system benefits directly from the effect of lemon oil. It has a stimulating effect on the defenses as it increases the amount of white blood cells. "