Vaporizer and electronic vaporization device

A vaporizer, comprising:

• a shell comprising a liquid storage cavity;
• a suction nozzle comprising a suction nozzle opening, the suction nozzle being connected to the shell;
• a vaporization air tube passing through the liquid storage cavity and comprising an inhalation channel in communication with the suction nozzle opening;
• and
• a start air tube passing through the liquid storage cavity, the start air tube being detachably arranged, an end of the start air tube close to the suction nozzle opening being in communication with an end of the inhalation channel close to the suction nozzle opening,
• wherein an end of the inhalation channel far away from the suction nozzle opening is in communication with external atmosphere,
• wherein an end of the start air tube far away from the suction nozzle opening is configured to communicate with a pneumatic switch on the main unit, and
• wherein the start air tube is in communication with a channel of the pneumatic switch and is isolated from a channel of the inhalation channel in communication with the external atmosphere.