A reader asks:

 Is there any report of hypomanic episodes with negative air ion therapy?


In formal clinical trials, when side effects were measured, there were no indication of hypomanic episodes. However, clinical cases include a small number of users who have become “wired” (or hypomanic) with negative air ion overdose — when, for example, they leave the ionizer on all night. It is safest to use the method as has been investigated: for 30 minutes after waking or 90 minutes before waking (automatically switched on and off by an electronic timer).