This is a coating process that utilizes "CT Catalyst," which provides deodorizing, antibacterial, anti-stain, and air purification effects without the need for light. This process uses a catalyst that combines carefully selected components from essential biological minerals. Through oxidation-reduction reactions and an electron shower effect, it breaks down harmful substances in the air even in places without light. Effects of CT Catalyst Coating: Deodorizing Effect: Decomposes malodorous substances such as ammonia, eliminating odors. Antibacterial and Anti-Mold Effect: Inhibits the growth of bacteria and mold. Anti-Stain Effect: Decomposes acidic and alkaline stains, making them less likely to adhere. Air Purification Effect: Purifies the air through oxidation-reduction and electron shower effects. Decomposition of Harmful Substances: Decomposes chemical substances such as formaldehyde, which causes sick building syndrome. It's stylish to incorporate this into your interior design, such as in the toilet, living room, or entrance. Maintenance is easy; removing dust every 2-3 months will help maintain its effectiveness. Thank you for your consideration.