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    How long should I use Philips EnergyUp?

    This depends on your goal: for seasonal low energy or energy dips use the EnergyUp at least 20-30 minutes per day. If you're staying in, you can have it on all day.


    Do not use Philips EnergyUp in the last few hours
    before bedtime. See instructions for use for more details.

    The information on this page applies to the following models: HF3420/03 .

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