Nac Co., Ltd. engages in rental and sale of dust control products in Japan. It operates through Kurikura Business, Rental Business, Architectural Consulting Business, Housing Business, and Beauty and Health Business segments. The Kurikura business segment is involved in the manufacture and sale of home delivery water, purified water servers, and hypochlorous acid solutions. The Rental Business segment engages in the rental and sales of dust control products, nursing care products, and welfare equipment, as well as pest control devices, regular cleaning services, and restoration work. The Architectural consulting business segment sells and constructs construction-related know-how products and construction materials to local builders, consulting services, and housing franchise business.The Housing Business is involved in the construction contracting for custom-built detached houses; sales of condominiums; and related financial services. The Beauty and Health Business segment manufactures and sells cosmetics, health food, beauty materials, and pharmaceuticals. It also offers financial services related to custom-built detached houses; import and sale of alcoholic beverages and Korean food products. The company was formerly known as Duskin Tsurugawa Co., Ltd. and changed its name to Nac Co., Ltd. in 1977. Nac Co., Ltd. was incorporated in 1971 and is headquartered in Shinjuku, Japan.