PuroAir 400 Replacement Filter - Genuine Puro Air 400 Filter Replacement - Official PuroAir Air Purifier HEPA Filter with CarbonTech Filters 99.9% of Pollen, Dust, Pet Dander, Smoke, Odors

These are expensive, but they work really well at catching dust and they are so easy to remove/install. The purifier (Shark 4) is very quiet and has no smell to speak of. These are a very good replacement

These filters are very easy to use you just open up the back of your filter and put them in not a problem at all. They do help collect the dust and other things they say they do. I’m very pleased with them. I also am pleased. They filter a large area.

This filter remove all odors. It is extremely easy to install and last up to 3 months when you take the time to vacuum its surface on a weekly basis. It collects dust effectively and improve the air quality tremendously. The noise level is very low.

Love the Puro air with great filters

I’ve been using the PuroAir 400 replacement filter for a while now, and it continues to impress. The replacement process is quick and hassle-free it fits perfectly in the unit every time. I noticed an immediate improvement in air quality after installing it, just like with the original. It does a great job capturing dust, pet dander, and other allergens, which is important for our household,I have 4 kids and 2 dogs. The filter also lasts as advertised, making it a dependable and worthwhile purchase. If you have the PuroAir 400, this filter is a must to keep things running smoothly. Highly recommend!

Well after 62 days of constant running, I would say the puroair 400 did its job. The hepa filters are a must. I bring home a lot of dust in the industry I’m in. I would say it’s helping pulling some of that out the air! Left is a brand new clean filter. Right filter is 62days old. LOOK AT ALL THAT DUST and discoloration. Happy with the results! Hope this helps

Exact replacement likethe one that came with the unit

They seem to do the job. I shopped around and this price was great.

I use it in my bedroom and I find that the replacement filters need changing too frequently. My bedroom is not in use for 18 hours a day so I wonder if I used it in a larger room how often would I have to change the filter. The filtering is fine with a new filter.