Desktop air purifiers, also called table air purifiers, are mainly used for small rooms and on tables, like baby rooms, living rooms, and small offices. D series desktop air purifier is the top-selling series. The desktop air purifiers for living home use a 3-stage filtration system, including a pre-filter, true H13 HEPA filter, and activated carbon filter, which purify 99.97% of 0.3-micron particles from dust, pollen, PM 2.5, pet dander, smoke, cooking smells, hair, keeping a fresh and healthy state in your bedroom, nursery, kitchen, bathroom or office.