We Believe That A High Efficient Pre-filter Will Contributes A Lot To The Health and Happiness of Your Family, and We Feel Proud To Be Engaged In This Great Job.   About This Product:   [Features]: High Efficiency Pre-filters, Remove Odors, Smells, Allergens, Dander, Pollen, Pet Hair, Dust or Smoke From Your House.   [Compatible Model]: Perfectly Compatible With Winix Models 5300 6300 5300-2 6300-2 P300 C535 Air Purifier.   Specifications:   Air Purifier Pre-filter Size(LW): 16.26 X 12.52 Inches   Air Purifier Pre-filter Thickness: 5 mm   Material: Activated-charcoal   Quantity: 5 Pieces   Package Includes: 5 X  Air Purifier Pre-filters   [Suggestion]:  Please Replace Your Filters Every 2-3 Months, Do Not Reuse.   This Is A Generic Product Designed and Engineered In China By Becozofu.  We Are Not Affiliated with, Sponsored By or Associated with Winix. This Is Not A Winix OEM Product and Is Not Covered Under Any Winix Manufacturer's Warranty. The Winix Brand Names and Logos Are The Registered Trademarks of Their Respective Owners. Any Use of The Brand Name or Model Designation for This Product Is Made Solely for Purposes of Demonstrating Compatibility.

Features:

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• UPGRADED FILTER, More Carbon & Higher ppi Filter Which Greatly Improves The Blocking and Absorbing Efficiency When Coping with Smaller Particles and Germs.
• COMPATIBILITY, The pre-filter dimension is 16.26 inches x 12.52 inches. Compatible with Winix PlasmaWave Purifiers 5300 6300 5300-2 6300-2 P300 C535, or other models with the same size, also you can DIY them based on actual measurements.
• GREAT BARGAIN, Extend The Life of your purifier kit, Our charcoal pre-filters will greatly reduce the dust & particles getting into your main filter. While Replacing main filter is costly. What's more cost-effective, your got a bundle of 5pcs.
• FRESH LIFE, Remove odors, smell and smoke - Made from Premium Activated Carbon Material to help keeping your room fresh and odor free. Ideal for households with pets, cooking, smokers & people suffering from asthma or allergies.
• PACKAGE INCLUDE, 5 pieces pre-filter, abundant supplies for more than 1 year, To keep your purifier working at its best condition, please replace it every 3 months.

Product Details:

• Package Dimensions: 16.7 x 13.7 x 1.3 inches
• Item Weight: 8.5 ounces
• Shipping Weight: 8.3 ounces
• Manufacturer: Becozofu