Question 1

Is this filter an authentic Winix OEM part, and how can I be sure?**

Accepted Answer

Yes, this is a genuine Winix replacement filter (Part # 115115). It is manufactured by Winix to the exact specifications of the filter that came with your purifier. You can identify it by the Winix branding and part number printed on the filter frame. Many reviewers on Reddit and TikTok have confirmed its authenticity by comparing it side-by-side with their original.

Question 2

I have a Winix C535, 5300-2, or P300. Will this filter definitely fit my model?**

Accepted Answer

Absolutely. This filter is specifically designed as a direct replacement for the Winix C535, 5300-2, P300, and 5300 series air purifiers. It's a perfect drop-in fit—no modifications needed. A common piece of advice from user reviews is to remove the plastic wrap completely before installation for the easiest fit.

Question 3

I've seen comments about shipping damage and confusing listings. What should I know?**

Accepted Answer

We understand those concerns. This listing is for a **single** Genuine Winix 115115 Filter. While rare, shipping damage can occur. If your filter arrives with a bent frame or broken plastic, please contact customer service immediately for a free replacement. We pack items securely, but appreciate users flagging these issues so we can work with carriers to improve.

Question 4

How long does this filter typically last, and is it good for pet hair and allergies?**

Accepted Answer

Under normal household conditions, you can expect about 6 months of use, but this depends on your air quality and runtime. Your purifier's "Check Filter" indicator light is the best guide. This filter is highly praised by pet owners and allergy sufferers for effectively capturing dander, dust, and pollen, with many noting a significant improvement in air quality and reduced allergy symptoms.

Question 5

Is this better than cheaper, generic filters I see online?**

Accepted Answer

Based on extensive user feedback, yes. While the initial price is slightly higher, the consensus is that this genuine filter provides superior value. Users who tried generic alternatives often report issues like poor fit, strange odors, or less effective filtration, leading them to switch to this Winix filter. It ensures optimal performance and protects your purifier's warranty.

Genuine Winix 115115 Replacement Filter A for C535, 5300-2, P300, 5300, White/Black

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