Purifies rooms up to 140m²  Perfect for large environments such as large offices, restaurants, classrooms, waiting rooms, salons and retail shops. 8 Filter both sides Air Cleaning System with UVC sterilisation A total of 8 filters installed on both sides make air cleaner even more powerful. Completely remove not only ultrafine dust, airborne viruses but also bacteria, bad living conditions, germs and harmful substances (ammonia, hydrogen sulfide, acids, etc) Ventilation Alarm Alerts the user to high concentration of CO2 in the room Real-time display of air quality Check air quality at a glance by the color of LED with the dust sensor able to detect PM 2.5 (ultrafine particle) Both sides suction, Multiple discharge structure Air holes placed on both sides of WHA-400 purify the air by absorbing polluted air in the room, including ultrafine particle. Smart features Useful convenient and smart features like automatic air volume control, timer setting, sleep mode, etc.  

Purifies rooms up to 70m²  Perfect for medium sized environments such as offices, restaurants, classrooms, waiting rooms and salons Cluster ionizer Effectively eliminates germs and odours (colon bacillus, ammonia, etc.) by releasing the cluster ionizer into the air. ​Real-time display of air quality Check air quality at a glance by the colour of LED with the dust sensor able to detect PM 2.5 (ultrafine particles). ​Smart features Useful, convenient and smart features like automatic air volume control, timer setting, sleep mode, etc. ​Removal of the ultrafine particle (PM1.0) Not only the invisible fine dust but also the ultrafine particle that is harmful to the human body can be removed. Clean 4-Stage Filtration System with UVC sterilisation Eliminate harmful airborne viruses, dust, bacteria and mildews through the 4-stage filtration system (Pre-filter, deodorization filter, antibacterial filter and HEPA H13 filter). Powerful air-cleaning with 6013 air holes Total of 6013 air holes placed on the four sides of WHA-300 purify the air by absorbing polluted air in the room, including ultrafine particle.

Purifies rooms up to 45m²  Perfect for smaller environments such as kitchens, small offices and retail shops. Advanced technology for air cleaning RUHENS purifiers create a pleasant air by emitting an ion cluster which effectively removes germs and microorganisms, such as staphylococcus aureus, from the air. The 4-stage LED lamp A sensor detects the indoor air pollution level and displays its degree of air pollution through 4 different colours. ​Smart Sleep Mode The airflow speed and light will be optimized automatically during sleep mode for a more pleasant slumber. ​Removal of the ultrafine particle (PM1.0) Not only the fine dust invisible but also the ultrafine particle that is harmful to the human body can be removed. Clean 4-Stage Filtration System Eliminate harmful viruses like dust, bacteria and mildews through the 4-stage filtration system (Pre-filter, deodorization filter, antibacterial filter and HEPA H13 filter).

Purifies rooms up to 35m²  Perfect for smaller environments such as kitchens, small offices and retail shops. Powerful air-cleaning with 2367 air holes A total of 2367 air-holes are placed on the front side of the WHA-500. These air-holes purify the air by absorbing polluted air in the room, including ultrafine particles, as well as reducing ultrafine particle and odours to keep indoor air clean. ​Clean 4-Stages Filtration System Keeps the room air fresh and clean by removing bacteria, odours, germs and toxic substance (ammonia, hydrogen sulfide, acetate, etc.) through a H13 grade ultra-fine particle free filter system. ​Real-time display of air quality Check air quality at a glance with the colour of LED on the front side, with the dust sensor able to detect PM 2.5 (ultrafine particle). ​Small but smart performance Useful, convenient and smart performances like automatic air volume control, timer setting, alarm for filter exchange, night ECO mode, etc.