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GermGuardian® FLT4850PT HEPA with Pet Pure™ Treatment GENUINE Replacement Filter B for Air Purifiers GermGuardian® FLT4850PT HEPA with Pet Pure™ Treatment GENUINE Replacement Filter B for Air Purifiers
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GermGuardian® FLT4850PT HEPA with Pet Pure™ Treatment GENUINE Replacement Filter B for Air Purifiers

Availability: In stock - USA and Canada SKU: FLT4850PT
MSRP: $54.99
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Product Information

New Filter Look! Optimal Performance!

Our filters have had a makeover! Although the look and color have changed, they still provide the high level filtration that helps you Create a Better Home Environment®. The new design optimizes the HEPA performance level filtration filtering 99.97% of allergens down to .3 microns. This is a direct replacement for your current filter. We have updated the design to provide a more rigid filter and changed the frame color to make it easier for you to identify our Genuine HEPA (yellow frame) and HEPA Pet Pure™ Filters (purple). We know how frustrating it can be to find the GENUINE filter in the sea of options you can find online. REMEMBERIt is very important to use only GENUINE filters made by Guardian Technologies to ensure proper performance and fit in your machine. Please don’t hesitate to reach out to our friendly US Based Support team if you have any questions regarding your filter at 1-866-603-5900 or support@guardiantechnologies.com. Thank you for your purchase of Guardian Technologies products.

Important: The fit of your new filter may vary from the original.  It’s due to the change in materials and is designed to be a less snug fit.  This will NOT affect the performance of the filter.

GermGuardian® FLT4850PT HEPA with Pet Pure Treatment GENUINE Replacement Filter B is a combination filter. It includes a HEPA filter that captures 99.97% of allergens as small as .3 microns. It also has a PetPure™ Filter Treatment, an anti-microbial agent to inhibit the growth of mold, mildew and odor-causing bacteria on the surface of the filter. The pre-filter/activated carbon filter layer captures odors from cooking, pets and smoking. It is recommended to use with the GermGuardian® AC4300, AC4900, AC4825, AC4850PT, CDAP4500 PureGuardian® AP2200CA and Black+Decker™ Model BXAP148. The use of this genuine Guardian Technologies™ replacement part will maintain the product's performance.


  • NEW LOOK:  HEPA filter continues to reduce allergens while the new  yellow frame helps you identify that it's a GENUINE HEPA Guardian technologies replacement filter. 
  • CAPTURES ALLERGENS:  HEPA Filter captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollens.
  • REDUCES ODORS:  Charcoal filter layer reduces common odors from pets, smoking and cooking.  Acts as a pre-filter to capture large dust particles, helping to extend filter life.  

Replacement filter for GermGuardian Air Purifier Models AC4900, AC4825, AC4850PT, CDAP4500, AC4300; PureGuardian Model AP2200CA and Black+Decker DXAP148

Only one single combination filter needs to be replaced every 6-8 months depending on the use of the product; Charcoal replacements can be purchased separately to extend the life of your filter (Model #FLT22CB4). IMPORTANT: Use genuine Guardian Technologies replacement parts to mantain product performance.

Product Specifications

  • SKU: FLT4850PT
  • Weight: 0.35lbs.
  • Dimensions: 1.29 x 4.76 x 15.77

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By: James

Works well, high quality filter cartridge.

Fits nicely and works well.

By: Sgtkeebler

Excellent filter.

This filter is great for pets. I out it in the room with the cat litter box, and I can't even smell the cat anymore. Definitely ordering more.

By: Jeff G

It's the factory replacement

Factory replacement. So far its just as expected. Comes in factory box, and works just as advertised. Would recommend especially for the price compared to elsewhere.

By: Printer User

Fits, works, wish it cost less

An OEM filter, so of course it works. . . just wish it cost less.

I've had no problems with the filter unit, so I recommend Germ Guardian to friends.


Wonderful filter

This us so easy and works so well. I have replacements when u have to change. Also so easy to clean once a month.

By: K. B. Barkley "Jamaican Dreamer"

Costly but worth every dollar...

I had to get air purifiers in my apartment due to my downstairs neighbor who smokes like a chimney indeed. I don't how one woman can go through 5 cartons of cigarettes within 2 weeks which means 10+ cartons per month. She has lost her right leg (amputee) because she refused to take treatments that would help her to save her leg due to poor circulation. My Germ Guardians purifiers are on HIGH & my ceiling fans are always on if not I won't be able to breathe in my own apartment. Oh well that's life, but this filter is a MIRACLE worker for me. Thank you God!

FLT4850PT $35.99
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