Diffuser with interchangeable cover

An apparatus comprising:

• a removable diffuser cover comprising one or more decorative features;
• a cavity in the diffuser cover, the cavity shaped to receive a complete diffuser comprising a diffuser element that disperses a liquid into air within a diffuser chamber and a lid shaped to at least partially enclose an upper opening of the diffuser chamber;
• and
• one or more openings in the diffuser cover, the one or more openings positioned to receive the dispersed liquid from the lid of the complete diffuser within the cavity and to allow the dispersed liquid to pass to an exterior of the diffuser cover.

A system comprising:

• a complete diffuser comprising,
• a diffuser element that disperses a liquid into air within a diffuser chamber of the complete diffuser;
• and
• a lid shaped to at least partially enclose an upper opening of the diffuser chamber;
• and
• a cover removably couplable to the complete diffuser over the diffuser lid, the cover comprising,
• one or more openings positioned such that the dispersed liquid passes through the one or more openings and out of the cover;
• and
• a controller configured to control one or more operations of the complete diffuser.

An apparatus comprising:

• a complete diffuser shaped to receive a removable cover;
• a diffuser element of the complete diffuser, the diffuser element dispersing a liquid into air within a diffuser chamber of the complete diffuser;
• and
• a lid shaped to at least partially enclose an upper opening of the diffuser chamber and to direct the dispersed liquid through the removable cover in response to the complete diffuser receiving the removable cover.