Air Purifier Recommended for the KC-50TH7: * People who want to use it in a large room such as a living room (up to 23 tatami mats) * People who want higher-performance air purification and humidification * People who plan to use it for a long time and want to reduce the frequency of filter replacement * People who need a high-performance filter for pollen and PM2.5対策 (PM2.5 countermeasures) ◆ High-Performance HEPA Filter and Deodorizing Filter The HEPA filter has the same performance as the top-of-the-line models, collecting more than 99.97% of 0.3μm fine particles. In addition, the deodorizing filter uses activated carbon and special adsorbents to effectively absorb odors from pets, cooking, etc. Both filters have a long lifespan, with a replacement目安 (estimated replacement) of about 10 years.