What is this red symbol telling me on top of my Levoit PUR131
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LifeSupplyUSA 5 Replacement True HEPA & Carbon Filter Sets for Levoit Air Purifier LV-PUR131 / LV-PUR131-RF
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Levoit 4-Speed White True HEPA Air Purifier ENERGY STAR (Covers
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High-quality air : If you have very high air quality requirements, LV131 Filters can help you. LV131 Filters Premium : Genuine HEPA filter captures
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Levoit LV-PUR131 True HEPA Air Purifier
Levoit LV-131 Levoit True HEPA Replacement Filter True Hepa Air