General air purifiers incorporate motor fans and filters in them, but j.air has no fans or filters. Therefore, it generates no motor sounds. The secret of generating a breeze despite such motor-less design lies in our proprietary ion electrode structure. For this structure, we applied an electric discharge mechanism called “corona discharge.” This mechanism and our proprietary combination with needle-type electrodes realized j.air’s capacity to purify air without using fans or filters. We have already obtained a utility model for this technology and have obtained a patent (PAT6897904).

j.air generates and discharges a large quantity of negative ions from our proprietary ion electrodes to negatively charge airborne particles (such particles have no potential or are positively charged). Negatively-charged particles then attach to positively-charged objects such as floor and walls, or stick to the positive lattice electrode along with the air flow. Indoor air is thus purified and we don’t have to inhale airborne particles.

The biggest feature of j.air is the simultaneous generation of a large quantity of negative ions and a small amount of ozone. When working together, ozone and negative ions are known to act more synergistically and exert effects in not only “dust removal” but also “sterilization” and “deodorization.” Because of this, they are widely introduced to hospitals and public facilities such as nursing and welfare institutions. In fact, the three purification effects – dust removal, sterilization, and deodorization – are the same as what natural atmosphere contains in order to purify air.

Since no filters are used, filter replacement is not needed. However, particles accumulate on the lattice electrodes, which must be cleaned on a regular basis. When dust particles have accumulated on the electrodes, there will be a hissing noise. When you hear the noise, remove the dust from the needle-type electrodes with the supplied brush. The lattice electrodes are washable. Use domestic mild detergent to remove any greasy dirt (e.g. when the product is used in the kitchen).

Ozone naturally exists in wild environments such as highlands, forests, and lakesides at a concentration of about 0.03ppm, and most people feel refreshed when visiting such places. Japanese OSHM standards require that ozone concentration in a workplace is below 0.1ppm. Even so, this level of ozone concentration will never be reached even when j.air is left constantly ON. In fact, we actually need a small amount of ozone in our environment.