Case for Aerosol Generation Device

A case for an aerosol generation device may include a housing, a power module and a cap. The housing may include a sleeve portion configured to engage a portion of the aerosol generation device to retain the portion of the aerosol generation device in the housing. The power module may be disposed in the housing and configured to directly or indirectly provide power to the aerosol generation device. The cap may be operably coupled to the housing to cover a mouthpiece of the aerosol generation device in a closed state and enable access to the mouthpiece in an open state.