Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Very good nano facial steamer, The steam is so soft, It became my favorite way for a relax after work. Very easy to use. Once or twice a week would clean pores with a mask or manually after using the steamer. Love it. Great value for the money.High recommended!