Air purifier and air-conditioning apparatus

An air purifier including a plurality of first discharge electrodes and being configured to supply a discharge product generated by the plurality of first discharge electrodes toward a treatment target within a space to purify the air in the space,

• the plurality of first discharge electrodes being formed to extend in a first direction, and being electrodes of a same polarity arranged spaced apart in a second direction orthogonal to the first direction,
• the air purifier comprising
• an induction electrode arranged at a central part of the plurality of first discharge electrodes as viewed in the first direction, spaced apart in a first direction from the plurality of the first discharge electrode, to extend in the first direction, and configured to form, with the plurality of first discharge electrodes, an electric field between the induction electrode and the plurality of first discharge electrodes to attract the discharge product generated from the plurality of first discharge electrodes, and
• an air-blowing unit configured to form a flow of air in the first direction,
• wherein each of the first discharge electrodes has, on one side of both ends in the first direction, a discharge point that comprises a needle-shaped tip and at which discharge occurs, and
• the induction electrode includes
• a base end and a tip end located on a side opposite to a side where the base end is present, the side being the one side in the first direction, the tip end having a tip-end surface being configured to overlap, in the first direction, a virtual line connecting the discharge points of the plurality of first discharge electrodes, or positioned on a side, where the treatment target is present, from the virtual line.