You should wash the hair on a routine basis the actual dirt which caught for the head as being a result wind blowing is washed away.
If you're have a gentle daily shampoo at home, you can actually use it to wash your mane on an everyday basis without any adverse improvements. https://vuf.minagricultura.gov.co/Lists/Informacin%20Servicios%20Web/DispForm.aspx?ID=8880390