E-CIGARETTE VAPORIZER AND E-CIGARETTE

Provided are an atomizer of an electronic cigarette, and the electronic cigarette. The atomizer comprises a liquid storage chamber for storing a liquid matrix; an air channel, which provides a flow path for allowing external air to enter the liquid storage chamber and has a communication port for allowing external air to enter the liquid storage chamber; and a sealing element comprising a shielding portion that shields the communication port. The shielding portion can open at least part of the communication port in response to a negative pressure change in the liquid storage chamber to allow external air to enter the liquid storage chamber. According to the atomizer and the electronic cigarette mentioned above, with the flexibility of a flexible component, the air channel can be opened in response to a negative pressure change in the liquid storage chamber, such that external air can enter the liquid storage chamber through the air channel so as to reduce the negative pressure to a certain extent in order to achieve smooth transfer of the liquid matrix.