The WellAir Novaerus Defend 400 Pre-filter is the Stage 1 filtration component for the Defend 400 air purification system. It features an M5 30/30 filter rating and is constructed from non-latex materials, ensuring safe and effective preliminary air cleaning. This pre-filter has a shelf life of 1095 days (approximately 3 years).
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The WellAir Novaerus Defend 400 Pre-filter is the Stage 1 filtration component for the Defend 400 air purification system. It features an M5 30/30 filter rating and is constructed from non-latex materials, ensuring safe and effective preliminary air cleaning. This pre-filter has a shelf life of 1095 days (approximately 3 years).
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