This page contains supporting information, including filter standards/classifications and performance information on all our filter models. Filter change instructions are available below.
RESPA Filtration Program: Standards & Ratings
Filter Change Instructions for RESPA CF2, CFX2, FFX2, CF, CFX
XLR Filter Change Instructions
MERV vs. HEPA: How Air Filters Work
Filter Change Instructions for RESPA SD, SD2, SDX, SDX2
Vortex MAX Filter Change Instructions
Sy-Klone®, Gideon®, OPTIMAX®, RadialSHIELD®, RESPA®, RESPA Advisor®, Series 9000®, Vortex®, Vortex HyperFLOW®, and XLR Powered Precleaner® are registered trademarks of Sy-Klone International.
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