Sharper Image Quadra SI867 Instructions Manual page 10

Setup and Operation
Normal operation at all power
Mode Control
levels involves a programmed
cycle of air movement.
To override the power control
setting and let the unit run at
maximum power for five minutes,
press BOOST.
Boost
Your previously selected power level
resumes after the five minutes has elapsed.
Note: When the unit is on, the negative-ion
feature is always on.
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