Description
- Products are 2 pairs, a total of (single)4 filter boxes
- Cannot be used alone,used with 6000,7000,FF-4 Filter Retainer.
- This product does not produce oxygen, feel the breath is not unobstructed when the timely replacement.
- If you have any questions related to the order, please contact us. We will reply within 24 hours.
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Cannot be used alone,used with 6000,7000,FF-4 Filter Retainer.
