Staywell is a personal air purifier that works on advanced ionic technology. It emits a constant stream of healthy negative ions (6.5 million/cm3) to improve air quality around you and eliminates air pollutants (e.g. virus, pollen, smoke, dust mites, moulds, etc.) With its compact design and state-of-the-art electrostatic purification system, Staywell A190 fight against air pollution by creating a 3-feet bubble of cleaner, safer air around your head, anywhere you go.