KL-WC01U is the Commercial model of the KL-W01. It is equipped with a newly developed corrugated carbon photocatalytic filter. Compared to the consumer model KL-W01, the B2B model delivers: * 2× the deodorizing power, achieved through the innovative corrugated activated carbon filter. * 2× the maintenance interval — filter cleaning is required only once a year (compared to every 6 months for the KL-W01) LED photocatalyst technology to decompose odors, mold, smoke, pollens, COVID, influenza, allergens, toxic odors -acetone, toluene, and acrylic. Free from UV, Ozone, and Ion-based technologies. Washable & Reusable filters. Made in Japan. Tested with University of Tokyo. The Noiseless, Odor sensor and four switching modes W17.36 x H17.16 x D3.27in, 6.6 lbs. MAIN UNIT ONLY. UL Certified. Warranty (US only):1 year labor, 2 year parts *Up to 560sqft *EPA EST No.103656-JPN-1 [Studies and Videos] https://drive.google.com/drive/folders/1l1lb6JYt5SF8RIjJ9-ng_V2YGt2ovsvJ?usp=drive_link