Care

The first day

Run it on the lowest setting for the first few hours. A new pump atomises unevenly until the line fills, and turning it straight to maximum is how people conclude it is broken when it is not.

Every few months

When output drops, it is nearly always the nozzle. Unscrew it, leave it in warm water for ten minutes, dry it, put it back. That is the entire maintenance schedule.

Between scents

Run the unit empty for two minutes before switching bottles, or the last scent argues with the next one for a week.

Do not

• Add water. There is no water in this system and adding it will clog the pump permanently.
• Use oil cut with alcohol or a carrier oil. Same result.
• Transport it on its side with a full bottle in.
• Leave it in a car in summer heat with a bottle fitted.