What is the Difference Between a HEPA Filter & a Pre-Filter?

You’ll come across the terms “HEPA filter” and “pre-filter” when shopping for an air purifier. Understanding what these filters do will help you purchase an air purifier that will do the job you need. Let’s take an unfiltered look at air purifier filters.

RIDGID 40068 HEPA Filter with Pre Filter - HF1000

Yaning Pre Filter Synthetic Fiber Handling Unit Air Filter Factory for Clean Room Project - China Air Filter, Pre Filter

RIDGID HEPA Vac Filter Kit with Certified HEPA Cartridge Filter, Fabric Pre-Filter for RIDGID 14 Gal HEPA Shop Vacuum RV2400HF HF1000 - The Home Depot

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2 Pack AP300 3-in-1 H13 True HEPA Replacement Filters Compatible with Instant AP300, Pre-Filter & H13 Grade True HEPA Filter & High Efficiency Activated Carbon Filter, Compare to F300 Filter

Honeywell HRF-ARVP300 HEPA Filter Kit for HPA300 Series Air Purifiers

HEPA Air Filters: Classifications, Design, Uses, and Testing

Return Riser Filter।Pre Filter।HEPA Filter।AHU

IQAir GC Series Pre-Filter, Air Filtration Products

BlueBird Filters Replacement HEPA Filter & Carbon Pre Filter Kit For Honeywell 10500 (EV-10) 17000 17000-S 17005 OEM Part Number 20500 (1 HEPA & No Pre-Filter) : Home & Kitchen