I'm selling this because it was too big for my house, and I quickly bought another one. The filter is also brand new. Body only. Power on has been confirmed. Fujitsu General is the company that releases this product as a deodorizer. I spoke with Kazuhiro Mizutani, the technical director of the Home Appliance Division, about the product planning intentions and the technology that makes it possible for the fourth-generation product "PLAZION (hereinafter, Plazion) DAS-301V". ■Why a Deodorizer? Kazuhiro Mizutani, Technical Director of Fujitsu General Home Appliance Division First of all, what's interesting is its unique position as a "deodorizer," which is almost the only one of its kind. "This is the fourth year since we launched this product in the market. From the product development stage, we conducted a survey on what customers want from air purifiers, and we found that more than 30% of them wanted to 'remove odors.' However, simply removing the source of the odor with a filter doesn't provide a fundamental solution. We thought that if we could decompose the source of the odor at the molecular level and eliminate it, we could create a product that would satisfy the market and our customers, so we focused on developing a product with that in mind." "The air that has been cleaned at a physical level by passing through the pre-filter and dust collection filter first passes through a metal oxide catalytic honeycomb filter called WAY-1, which strongly and quickly deodorizes using oxygen in the air. Technically, the metal oxide catalyst adsorbs the odor-causing components, combines them with oxygen in the air, that is, oxidizes them, and decomposes them into odorless molecules."