... :100pcs 4.RoHs air purifiers and odor remove used for refrigerator air purifiers and odor remove used for refrigerator1.Material: ... easy to operate, economical and durable.Application:1.Mainly used in metallurgy, iron and steel, petroleum, chemical, and electric ... field for purification, decolorization, dechlorination, deodorization;2.Also be used for drinking water, purified, water, liquor, beverage, ...