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.

Legend Brands Restoration DefendAir HEPA 500 1st Stage Pre-Filter

Honeywell InSight Large Room Air Purifier for Allergies - HPA5200B

What is the difference between HEPA, TRUE HEPA and Medical Grade HEPA?

Honeywell Premium Odor and Gas Reducing Type A+ Pre-Filter HRF-APP1V1 - The Home Depot

Honeywell Hepa Type Replacement U Filter With Integrated Pre-Filter

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

HEPA + PRE-FILTER AND ACTIVATED CARBON FILTER PACK for BISSELL air220 & air320

Nispira True HEPA Filter + Activated Carbon Pre Filter Compatible with

MERV 7 Pre-Filter, airflow, 14 x 19.5 x 1 thk, UL Listed 6601-34-B

Hunter Replacement Value Pack with HEPA EcoSilver Pre-Filter for HP400 Air Purifier Series H-HF400-VP - The Home Depot

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

Industrial Filter (Pre Filter,Fine Filter & HEPA Filter) at Best Price in Delhi

Core 300 Replacement Filter for LEVOIT Core 300 and Core 300s Air Purifier,3-in-1 True HEPA Filter with Activated Carbon Pre-Filter, Compare to Part No. Core 300-RF,2 Pack,White : Home & Kitchen