115115 3 HEPA Filter A Replacement for C535, 5300, 5300-2, 5500, 5500-2, 6300, 6300-2, P300, AM90, C909, 9800 Compatible with Winix Air Purifier

The LifeSupplyUSA Replacement True HEPA Plus 4 Carbon Filters seem to have mixed reviews from customers. Some customers have reported that the filters fit well in their air purifiers and work perfectly, while others have had issues with the filters not fitting properly and leaving a gap around the edges, allowing air and dust flow. Some customers have also noticed that the air quality light on their air purifiers is now in the poor range more often with these filters compared to the original filters. There have also been complaints about the filter indicator lights on some units not going off and the filters only lasting for about 2 months instead of the advertised year. However, there are also positive reviews from customers who have been using these filters for years without any problems. They find the filters easy to use, install, and maintain. It is worth noting that there is one particularly negative review where the customer experienced a strong pungent smell coming from the filters after installation. Overall, customer satisfaction with the LifeSupplyUSA Replacement True HEPA Plus 4 Carbon Filters appears to be mixed, with some customers having a positive experience and others facing issues with fit and performance.