RUHENS air purifier "WHA-500" is a compact product with a 22.3㎡ coverage and is suitable for those smaller rooms. WHA-500 has a four stage filter system including a Pre-filter, an anti allergy filter, a deodorization filter and an ultra-fine particle free filter. The WHA-500 can remove ultra-fine particles and various odors.

The pre-filter removes large dust, fur and pollen. The anti allergy filter removes the allergy components, influenza and odors. The deodorization filter removes formaldehyde and odors. The ultra-fine particle free filter removes ultra-fine particles & fine dust.

Additional features includes an air quality check via a color coded LED on the front of the system with a dust sensor able to detect PM 2.5. There is also useful convenient and smart features such as an automatic air volume control, timer, alarm for filter change, ECO mode, etc.