The difference between VATI s6s7s8 is mainly that the difference between VATI range hood s7 and s8 is not very big. After comparison, I bought the VATI range hood Kengshi S8. This VATI range hood Kengshi S8 is extremely sophisticated in workmanship. To tell the truth, this VATTI three-cavity variable frequency range hood and Kengshi S8 gas cooker disinfection cabinet set is a three-piece household kitchen set