Genuine Winix 115115 Replacement Filter A for C535, 5300-2, 6300-2,P300, 5300 and 5500

Exact OEM Winix filters. These are A filters 115115. The hepa filter fit in my unit perfectly and the carbon filters fit exactly in the frame of the hepa filter. It is really disgusting how dirty the filters get. The hepa filter is grey in comparison to the new white hepa filter. The carbon filter also collected very many particles like the dry lint in your washer. The carbon filter in the picture was replaced only a couple months ago. I was in fact shocked that the air cleaner did so much for the air, proof is in the pics. I was mostly using it for white noise. The house the Winix air cleaner is in is smoke and pet free. I did also vacuum out the base unit and the plastic unit filter, which had so much lint on it I could make a sweater. My bad on not doing regular maintenance on the unit. The Winix air cleaner is like brand new now and noticeably sounds like it is preforming better, which should have been my first clue to checking on the unit and changing the filters, besides all the dirt particles! I took some blue painters tape and wrote the replacement date of the hepa and carbon filter on the back of the unit so it is recorded for easy retrieval. I am definitely happy with my genuine Winix filter replacements for piece of mind that the filters have not been made cheaper and less effective in order to sell cheaper. Considering the filter pack lasts an entire year, the cost is a fraction of a penny a day. I will always go genuine Winix!

Fit fine in my machine and does what I need it to do, but for $50, one would think they'd be able to invest in a simple box to protect what's inside when shipping. Came while it was raining and package was drenched. Also has clearly been opened before and re-sealed. The only reason I did not return the item was that the inner contents were still sealed in plastic and presumably ok. Do better with your shipping and it'll be 5 stars all the way.