Provided herein is a portable aerosol device including, in some embodiments, a mouthpiece, a cartridge, and a shell configured for inserting the cartridge into the shell. Regarding the cartridge, the cartridge can include a tank configured to hold a vaporizable material, a wick and a heating element for vaporizing the material, an air path to the wick and the heating element, an aerosol path from the wick and the heating element, and a battery configured to power the portable aerosol device. The air and aerosol paths can be at least partially positioned in a space between the tank and the battery. Regarding the shell, the shell can include an air intake hole, a viewing window, a closed end, and an insertion opening.