***open box….open packaging. The purOxygen P500 P500i Replacement Filter is a modern and eco-friendly plug-in air purifier designed for any room in the house. It features a 4-in-1 True Purification System with True HEPA, Activated Carbon, HEPA-Type, and Pre-Filter filtration technology to capture allergens, cooking oil smoke, dust, candle soot, dust mites, bacteria, and debris. The filter is designed for easy maintenance, with a pre-filter that can be separated and washed, providing clean air for up to 4 months.
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