An air purifier may have a casing defining a support to receive a substrate of a plant, an artificial plant and/or a removable pot. The casing forms a chamber, an outer wall of the casing defining one or more air inlets, and one or more air outlets. An air filter(s) is housed in the chamber. A fan os housed within the chamber. A motor is operable to drive the fan, whereby the fan is operable to draw in air through one or more air inlets in the casing and through the air filter, the fan further operable to expel the drawn-in air through the one or more air outlets in the casing.

A method of displaying a botanical in a display jar has a jar lid having an open and a closed position. The jar lid includes a mechanism that is biased toward the closed position. The jar lid has at least on vent on a side. The user depresses a center cap on top of the jar lid from the closed position to the open position. The vent is opened and aroma from inside the jar is released from the jar through the vent. The user then releases the center cap so that the lid returns to the closed position and the aroma is sealed within the jar until the vent is opened again.

A method of displaying a botanical in a display jar has a jar lid having an open and a closed position. The jar lid includes a mechanism that is biased toward the closed position. The jar lid has at least on vent on a side. The user depresses a center cap on top of the jar lid from the closed position to the open position. The vent is opened and aroma from inside the jar is released from the jar through the vent. The user then releases the center cap so that the lid returns to the closed position and the aroma is sealed within the jar until the vent is opened again.