This is a Philips UV-C in-room air sterilizer. Made in 2021. With a safety-designed UV-C light, it draws in indoor air into the product, inactivates it, and then blows out clean air. It circulates the air in the room, inactivating viruses and bacteria! UV-C light does not leak outside, and it can be used 24 hours a day. The filter has been cleaned. Please refer to the photos. There is no instruction manual. Please download it from the manufacturer's official website. ● Model Name UVCA200 ● Part Number 911401538981 ● Power Voltage, Frequency AC100V, 50/60Hz ● Power Consumption 128W ± 10% ● UV-C Lamp Philips TUV PL-L 18W x 4 ● UV-C Wavelength 254nm ● UV-C Lamp Life (Design Rating) 9000 hours 10% attenuation ● Timer Settings 30 minutes, 60 minutes, 120 minutes, continuous ● Airflow Speed Settings 3 levels ● Air Volume Maximum 550m3/hour ± 10% ● Button Life 15,000 times ● Motor Life 20,000 hours ● Body Material UV-C resistant plastic ● Dimensions (cm) Approximately 36 in diameter x 79 in height ● Weight 12.3kg ● Accessories Power cord (Search terms: UV-C, air sterilizer, sterilization, air purification, COVID-19, office, room, air sterilization, surface sterilization, UV-C, inactivation, infection risk reduction, infectious disease countermeasures, 4900005384333, influenza)