The present invention provides an air purifier which has increased condensation performance, excellent operating property, low cost and high reliability, as well as a condenser. The air purifier of the invention comprises the following components: a purifying and filtering mechanism for purifying the circulating air a fan motor which is provided at the downstream side of the purifying and filtering mechanism and sucks the air a vaporization filtering mechanism which is configured between a purifying and filtering mechanism and a fan motor for humidifying the circulating air a water supply tank which supplies water for the vaporization filtering mechanism and a dehumidifier which is configured between the purifying and filtering mechanism and the fan motor for dehumidifying the circulating air. A moisture absorbing component which absorbs the moisture in the air in the dehumidifier is configured at the upper part, and furthermore the vaporization filtering mechanism is configured below the moisture absorbing component. The condenser of the dehumidifier is provided with a condensation part which comprises a flow path that condenses the air after the vaporization of the moisture absorbed by the moisture absorbing component of the dehumidifier. Furthermore the condenser is configured through covering the front part of the moisture absorbing component and the vaporization filtering mechanism.
