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E20/DE20 Pre-filter [Longevity: 6 Months]InovaAir Purifiers
With average dust and usage levels, prefilters can last up to 6 months. As operating conditions vary, exact filter life will be based on levels of dust, chemicals & odors present, and system proximity to major pollution sources. As such, Inova Purifiers does not warranty consumable filter life.
PLEASE NOTE: Wildfire smoke will reduce the life of pre-filters.