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

It fits the models we bought this for. We’ve had good experiences with previous purchases. No complaints here.

I went with the OEM filters because I didnt want to risk getting questionable quality with a purifier that I depend on for health. Not sure if it is better then other cheaper brands, I just know that they are not of the same quality that came with the machine and they are way over priced for what they are. Way of the world these days.

Filter fits perfectly and includes a few carbon pre-filters in the box.

Easy install

I used to order these direct from the company. One day I decided to check Amazon and behold, they also carry them. They were less costly than those from the company and when they arrived they were exactly what I needed. Thanks Amazon.

This air purifier is wonderful. The filters definitely make a difference in the air quality. My old ones were definitely loaded with dust and cat fur. My sinuses and air passages felt better within an hour or so of changing out the filters. The air simply feels cleaner, and I think it is that it is free of odors. That is unfortunately the one downfall of these filters. If you like to run a Scentsy, or Essential Oil diffuser...or bake luscious smelling cookies...forget about it. The carbon pre-filters are so effective at removing odors from the air that they snatch the ones youd like to keep around too :)

As advertised. Quick shipping. Perfect fitment.

Like many others, I thought it didnt fit the 9500 at first. It does fit. The cartridge in the unit is a different filter pack. That can be ordered on Amazon too but it isnt required. It has washable carbon filters but last 1 year like this filter package does. Steps: 1. Take the cartridge out and set it aside. You can throw this whole thing away. 2. Put the white HEPA filter in with the arrow facing IN for airflow. 3. Put one of the 4 black carbon filters on top of the HEPA filter. 4. Replace the case. 5. Your done. In 3 months l, replace the black carbon filter. In a year buy this product again and start over. I wish this thing came with instructions.

Works well. Never had a problem with these. I think they’re better for small rooms. Don’t notice a difference in larger areas or rooms. I find the hepa filter doesn’t last a full year so it’s good the price isn’t too high. The only problem is Amazon’s drivers are either too lazy and/or totally incapable of following delivery instructions.

This is a simple operating machine.. It is quiet, relatively inexpensive. Changing filters and cleaning machine is easily done and running it daily, has not increased our power bill at all.