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Internet # 206868655

Model # FLT4825

Store SKU # 1001722707

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FLT4825 HEPA Pure Air Purifier Replacement Filter Type B, 1-Count, Designed for AC4825, AC4880, AC4300, AC4820, AC4870

$20.99
  • GermGuardian Air Purifier True HEPA Replacement Filter
  • Captures Dust, Pet Dander, Smoke, Mold Spores and Plant Pollens
  • GermGuardian True HEPA Filter B for Tower Air Purifier
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Product Details

About This Product

In today's rapidly changing environment, the air we breathe is no longer as pure as it once was. Urban growth, industrial emissions, and the luxuries of modern living have introduced a myriad of pollutants into our everyday lives. From bustling cities to quiet suburban homes, the threat of inhaling harmful particles like smoke, chemicals, and allergens has become an everyday concern. At Guardian, we can help you tackle these challenges at the microscopic level. Our FLT4825 Genuine HEPA filter traps 99.97% of airborne viruses, bacteria, mold spores, and particles as small 0.1 microns. While off-brand imitators claim to do the job, they often fall short, allowing minuscule but harmful particles to remain, posing a threat to our health. Investing in a high-quality filter, offering certified fit and superior filtration, is an investment in yourself and your family. Our Guardian air purifier replacement filters not only ensure a snug fit but also promise unparalleled filtration efficiency. In an era where the quality of the air we breathe can significantly impact our health, opting for Germ Guardian HEPA PURE is a step towards a purer future. Please note that packaging may vary.

Highlights

  • GENUINE HEPA PURE FILTRATION - Experience the power of authentic HEPA PURE air filtration. Genuine GermGuardian high efficiency FLT4825 HEPA air filters capture 99.97% of dust, allergens, and wildfire smoke particles down to 0.1 microns from the air. With a massive 9.0 sq. ft. of filter area and over 140 pleats, our genuine filters effectively trap pollen, harmful bacteria, and pet dander from the air.
  • WHY HEPA PURE - Proudly manufactured in North America, FLT4825 HEPA PURE stands out with its unmatched multi-layer filtration technology. Backed by rigorous scientific testing using reputable and independent labs, we combine extensive research, superior materials, and meticulous engineering to outperform the competition. Beware of knockoffs that compromise on quality and craftsmanship, leaving harmful pollutants in the air. Genuine HEPA PURE filters increase longevity with fewer replacements while delivering an air of confidence in a safer, cleaner, and more breathable environment.
  • PURE PARTS, PURER AIR - Genuine GermGuardian replacement filters guarantee certified fit and maximum filtration. Off-brand filters frequently fail HEPA testing standards, fit incorrectly, reduce efficacy, and may cause damage to your GermGuardian air purifier. Your purifier is only as powerful and effective as the filter you put inside.
  • REDUCES ODORS - The activated carbon pre-filter traps dust, pet hair, and other large particles, while extending the life of the HEPA filter. Treated carbon absorbs volatile organic compounds from the air and reduces odors from smoking, cooking and pets. The FLT22CB4 carbon pre-filters can be replaced every 2-3 months to help reduce common household odors and extend filter life.
  • COMPATIBLE AIR PURIFIER MODELS: Replacement filter for GermGuardian Air Purifier Models AC4825E, AC4825W, AC4870, AC4820, AC4300BPTCA, AC4300WPT, AC4900CA, AC4850PT, CDAP4500BCA, CDAP4500WCA, PureGuardian Model AP2200CA and Black+Decker BXAP150
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Product Information

Internet # 206868655

Model # FLT4825

Store SKU # 1001722707

Additional Resources

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From the Manufacturer

Specifications

Dimensions: H 15.77 in, W 4.76 in, D 1.29 in

Dimensions

Product Depth (in.)

1.29 in

Product Height (in.)

15.77 in

Product Width (in.)

4.76 in

Details

Air Purifier Accessory Type

Air Purifier Filter

Air Purifier Features

None

Air Treatment Product Type

Air Purifier Accessory

Appliance Category

Appliance Parts

Appliance Series

Not Applicable

Model Compatibility

AC4825, AC4870, AC4820, AC4300BPTCA, AC4300WPT, AC4900CA, AC4850PT, AC4880, CCDAP4500

Pack Size

1

Part Type

Filter

Particles Removed

Allergen, Dust, Mold, Odor, Smoke

Primary Filter Type

HEPA

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

No warranty for air purifier filters.

Questions & Answers

Is this for the Brondell O2+ Revive air purifier?
ByMar 27, 2026
1 Answer | 
Answer This Question

We understand the need for asking this question. In order to ensure we can direct your question to the proper team, and we can offer the best, targeted support, please complete a contact form which can be found below. One of our agents will be standing by to assist you. https://laskoproducts.zendesk.com/hc/en-us/requests/new?ticket_form_id=360003451752

By|Mar 28, 2026


    is this for model ac4825e
    ByJan 2, 2025
    2 Answers | 
    Answer This Question

    This filter does not fit the ac4825e what gives

    By|Oct 17, 2025

      Thank you for your inquiry! Yes, this is for model AC4825E.

      By|Jan 4, 2025


        I took the entire filter thing from the back and rinsed it under water. Was this a bad idea? I?ve only had the purifier for a couple of days. I?m having my bathroom repaired and it was extremely white from the dust.
        BySep 11, 2023
        1 Answer | 
        Answer This Question

        Hi, Thank you for reaching us and we hope you are doing well. We don't recommend using water to clean the filter. You can use a vacuum to clean the carbon filter and remove loose debris and help prolong the life of your filter. If it is more convenient you can chat with us on Guardiantechnologies.com We are available to chat Monday through Friday from 8am to 9pm EST.

        By|Aug 20, 2025

          (3)

          What's the difference between filter type B
          ByOct 29, 2020
          0 Answer | 
          Answer This Question

          Are these hoes filters washable?
          ByNov 10, 2019
          2 Answers | 
          Answer This Question

          No, this filter is not washable.

          By|Dec 16, 2022

            (1)

            What is a hoe filter ?

            By|Dec 3, 2025

              (6)

              How many filters in package
              ByJul 7, 2019
              2 Answers | 
              Answer This Question

              This item is only 1 in a pack.

              By|Nov 6, 2023

                (1)

                just one filter per package

                By|May 15, 2020

                  (1)

                  Whats the difference between the yellow and black ones for flt4825. I know purple “B” is PET
                  ByOct 22, 2018
                  1 Answer | 
                  Answer This Question

                  Sure it is not GRAY. The gray ones are for smoke.

                  By|Dec 3, 2024


                    It says this filter works for the AC4900 series, but the dimensions are too large for it. What gives?
                    ByApr 23, 2017
                    1 Answer | 
                    Answer This Question

                    This HEPA filter is designed for GermGuardian AC4900 series air purifiers. The filter dimensions are 1.6" W x 5.15" D x 17.8" H. If the filter seems too large for your AC4900 unit, double-check your model number and the filter compatibility information to ensure you have the correct filter.

                    By|Feb 20, 2025


                    Viewing 1-8 of 9

                    Customer Reviews

                    4.8 out of 5

                    • 4.8 out of 1,721 reviews
                    • 94% recommend this product
                    Filter by:
                    Showing 1-10 of 1,721 reviews
                    I notice when it’s off!
                    I’ve had my guardian filter for a few years now and Am very happy with it. I have 2 cats, old windows in Chicago at a busy intersection—super important for clean air in the home!
                    by
                    Response from Customer CareOct 4, 2026
                    Thank you for sharing your experience! We’re so happy to hear that your Guardian air purifier has been helping keep the air in your home clean, especially with two cats and a busy intersection nearby. We truly appreciate your continued trust in Guardian Technologies and are glad to be part of your home for the past few years!
                      • Recommended
                      Ozziegator
                      Keep the air in the rooms clean I have a cat and I don’t see hair or dust like I use to see Iam glad for this product
                      by
                      • Verified Purchase
                      • Recommended
                      Love my Air Purifier
                      Love my Air Purifier
                      by
                        Works so well and air
                        Works so well and air is so much cleaner. Helps with my itchy skin and breathing problems. I love this product. Thank you for making my life easier.
                        by
                        Response from Aug 2, 2021
                        Thank you for taking the time to write us a review and for providing a picture! We appreciate it! If you ever have any questions regarding our products, do not hesitate to reach out to our customer support team at Guardian Technologies directly!
                          Best purchase ever
                          I have used air filters, especially with UV, for over 6 years (peritoneal dialysis of a family member 2 years) and family allergies from pets, grasses and trees. These filters are amazing, air quality is so nice. When the smoke from our California fires made the skies orange, the filters cleared my internal air,but of course, they clogged. With new filters installed, my air cleared overnight ( did run on high) and now I breathe fresh and clean internal air. This unit is very quiet, unobtrusive, well-built, easy to maintain and will never be without it ( actually have 4).
                          by
                          Response from Sep 27, 2020
                          Thank you for the review! If you ever have any questions regarding your unit, we are happy to help! Please reach our customer support team directly. Our e-mail is Support@Guardiantechnologies.com.
                            I would really recommend using the true hepa filter with the GermGuardian air purifier. I get a m...
                            I would really recommend using the true hepa filter with the GermGuardian air purifier. I get a much better night's sleep and breathe a lot easier. The continuous hum is a low continuous sound and is very soothing. Having a long haired dog is no longer an issue. I tried, by accident, using a "knockoff" filter one time and could really tell the difference.
                            by
                            • Verified Purchase
                            • Recommended
                            3 found this review helpful
                            Air goes in one side, comes out the other with less stuff in it.
                            This replacement filter is sexy, gorgeous and sleek! OK, so it's a filter, air goes in one side, comes out the other with less stuff in it. BFD. Good: It fits, it's easily installed, and it has everything you need. I've included an photo with an old filter and the new one (that's been installed a couple weeks now). ...Which tells the story, pretty well. Meh: It probably cost 50¢ to make and costs $30, but that's at least $10 less than anywhere else. Also, I can get it delivered to the nearby Home Depot, so it won't get stolen off my porch, so that's a plus.
                            by
                            • DIY
                            • Verified Purchase
                            • Recommended
                            7 found this review helpful
                            This customer chose to rate the product and not provide text.
                            by
                            Response from Customer CareNov 6, 2026
                            Thank you for your positive feedback! We're glad to hear that the filter is working great for your air cleaner. Thank you for choosing Guardian, and we appreciate your support. Have a wonderful day!
                            • Verified Purchase
                            This customer chose to rate the product and not provide text.
                            by
                            This customer chose to rate the product and not provide text.
                            by
                            Response from Customer CareNov 1, 2026
                            Thank you for your feedback! We're delighted to hear that the GermGuardian was a perfect fit and easy to install. It's great to know the filter fit your unit well and made replacement quick and hassle-free. We appreciate you taking the time to share your experience and thank you for choosing GermGuardian!
                            • Verified Purchase
                            Showing 1-10 of 1,721 reviews

                            FLT4825 HEPA Pure Air Purifier Replacement Filter Type B, 1-Count, Designed for AC4825, AC4880, AC4300, AC4820, AC4870

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                            Germ Guardian Air Purifiers
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                            Product Snapshot

                            Ideal for allergy sufferers wanting HEPA filtration, ensuring 99.97% particle removal and odor reduction.
                            Ideal for allergy sufferers, this HEPA-type filter captures 99% of microscopic allergens and reduces odors, ensuring cleaner air.
                            Ideal for pet owners, ensuring clean, allergen-free air with multi-stage filtration.
                            Ideal for allergy sufferers, this HEPA filter removes 99.97% of particles, smoke, and odors, ensuring cleaner air.

                            True HEPA filter

                            Activated carbon

                            Smoke removal

                            Washable filter

                            Filter change indicator