Product image of 2 Pack 115115 HEPA Replacement Filter A Size 21 Compatible with Winix PlasmaWave Air Purifier C535 5300 5300-2 5500 5500-2 6300 6300-2 P300 AM90 9000 5000 5000B C909 9800 by Funmit

2 Pack 115115 HEPA Replacement Filter A Size 21 Compatible with Winix PlasmaWave Air Purifier C535 5300 5300-2 5500 5500-2 6300 6300-2 P300 AM90 9000 5000 5000B C909 9800 by Funmit

4.8(352 reviews)

AI-powered analysis of this product's reviews to help you make an informed purchase decision.

Trust Score Gauge showing B grade with 86% scoreCircular progress indicator displaying trust score from 0 to 100 percent, currently at 86 percent
B
0%🟢
Very Good

Trust Score

How trustworthy are the reviews for this product?

✓ Reviews appear trustworthy

Analysis Summary

Based on the analysis, this 2-pack HEPA replacement filter for Winix air purifiers has received overwhelmingly positive reviews, with an average rating of 4.8/5 from 8 reviewers. The high reviewer credibility score suggests that the reviews are trustworthy, but the lower review content quality score indicates that some reviews may lack detail or specificity. Overall, this product appears to be a reliable replacement filter option for Winix air purifier owners, but some users may want to consider the slightly lower seller reputation score when making a purchase.

Review Timeline

Review patterns over time - spikes may indicate manipulation

90%
Velocity Score
Spikes
0

None found

Peak
2

Reviews/mo

Timeline
6

Months

Pattern Analysis

Good: Review pattern appears natural with steady growth. No suspicious spikes that might indicate review manipulation.

Keyword Analysis

Common phrases and their authenticity patterns

69%
Authenticity
replace the black carbon filter(5)replace these white filters(8)filter sensor on our winix air filter(11)thin stick on covers that filter out the fine dust(14)Winix HR900(17)Winnix air filter thingy(20)HEPA filters usually last about 9-10 months(23)carbon filters are supposed to be changed every 3 months(26)
Positive
4

Natural phrases

Critical
2

Genuine concerns

Suspicious
2

Generic phrases

Language Authenticity

Vocabulary Diversity97%
Natural Language Flow96%
Unique Phrasing92%

Good: Language patterns appear natural with good diversity. Reviews use varied vocabulary and authentic expressions.

Recommendation

✅ Recommended

Analysis Date

October 1, 2025

Total Reviews

352 reviews analyzed

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✨ High Quality Product

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Grade B2 Pack 115115 HEPA Replacement Filter A Size 21 Compatible with Winix PlasmaWave Air Purifier C535 5300 5300-2 5500 5500-2 6300 6300-2 P300 AM90 9000 5000 5000B C909 9800 by Funmit