The True HEPA Replacement Filter for the Truclean Air Purifier capture at least 99.97% of airborne particles 0.3 microns in size, so you can enjoy fresh air even longer. Featuring greater adsorption and a honeycomb structure, the improved filters cover a larger surface area. To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area.
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Levoit Air Purifier LV-PUR131 Replacement Filter True HEPA Activated Carbon
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Levoit LV-PUR131 Comprison to Top Rated Options
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Levoit LV-PUR131 Review
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Hathaspace HSP001 Vs Levoit LV-PUR131 - Fair Battle? (2022)
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Hands-On Levoit LV-PUR131 Air Purifier Review: Good Quality & Adequate, But Better Options Exist