A method for capture and inactivation of microbes and viruses used in an apparatus, the apparatus comprising: - an air path housing, - a first high-voltage application electrode to be supplied with a voltage to charge airborne microorganisms introduced in the air path housing, a first counter electrode disposed so as to face the first high-voltage application electrode, - a hydrophilic filter sandwiched between a second high-voltage application electrode and a second counter electrode, the hydrophilic filter being configured to capture the airborne microorganisms charged by the first high-voltage application electrode, and - a single high voltage power supply to supply a voltage to the first high-voltage application electrode and the second high-voltage application electrode, and the method comprising: - a step of introducing the airborne microorganisms into the air path housing of the apparatus; a charging step of charging the airborne microorganisms introduced in the air path housing; - a filter capturing step of capturing the charged airborne microorganisms with the hydrophilic filter which has been polarized; and - a step of inactivating the airborne microorganisms captured by the hydrophilic filter with plasma, wherein the step of inactivating the airborne microorganisms captured by the hydrophilic filter with plasma is started after the charging step and the filter capturing step. - an air path housing, - a first high-voltage application electrode to be supplied with a voltage to charge airborne microorganisms introduced in the air path housing, a first counter electrode disposed so as to face the first high-voltage application electrode, - a hydrophilic filter sandwiched between a second high-voltage application electrode and a second counter electrode, the hydrophilic filter being configured to capture the airborne microorganisms charged by the first high-voltage application electrode, and - a single high voltage power supply to supply a voltage to the first high-voltage application electrode and the second high-voltage application electrode, and the method comprising: - a step of introducing the airborne microorganisms into the air path housing of the apparatus; a charging step of charging the airborne microorganisms introduced in the air path housing; - a filter capturing step of capturing the charged airborne microorganisms with the hydrophilic filter which has been polarized; and - a step of inactivating the airborne microorganisms captured by the hydrophilic filter with plasma, wherein the step of inactivating the airborne microorganisms captured by the hydrophilic filter with plasma is started after the charging step and the filter capturing step. - a step of introducing the airborne microorganisms into the air path housing of the apparatus; a charging step of charging the airborne microorganisms introduced in the air path housing; - a filter capturing step of capturing the charged airborne microorganisms with the hydrophilic filter which has been polarized; and - a step of inactivating the airborne microorganisms captured by the hydrophilic filter with plasma, wherein the step of inactivating the airborne microorganisms captured by the hydrophilic filter with plasma is started after the charging step and the filter capturing step.