Outlet EventEnds Jan. 19. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Germguardian PURE HEPA filter replacement. Authentic replacement for HEPA filter in air purifiers. Made by Germguardian Technologies since 2005.
  • Captures 99.97% of particles down to 1 microns. PA Pure Filter: 140 pleats and 9 sq. ft. of filter area. Captures 99.97% of particles. Filter size. Carbon Pre-Filter: Captures large particles and absorbs odors.
  • ALWAYS CAPTURING ALWAYS PROTECTING Dust Pollen Odors Asthma Smoke Lint Pet Dander VOCs Viruses* *Tested with Staphylococcus Albus, Escherichia Coli, Aspergillus Niger, and Phi-X174
  • Don't Be Fooled: Genuine Exceeds PA Standards Imitations Fail PA Standards. Removes 99.97% of harmful particles down to 1 microns. Removes <85% of harmful particles down to 5 microns. Optimal fit & performance. Loose fit & poor quality. Guardian Technologies Authentic Replacement Failed Since 2005.
  • LONG-LASTING RELIEF: For best results, change filter every 6 months. The FLT22CB4 carbon pre-filter layer can be replaced every 2-3 months to help reduce household odors and extend filter life.
  • REPLACEMENT FILTER DESIGNED FOR guardian TECHNOLOGIES- GERM GUARDIAN * AC4825E * AC4825W * AC4825DLX * AUTHENTIC REPLACEMENT SINCE 2005 * GERM GUARDIAN * AC4880B * AC4880W * AC4880G * AC4300WPT * AC4820 * AC4870 * AC4300BPTCA
  • The text on the image is grouped as follows: 1. "TAILORED TO YOUR ENVIRONMENT" 2. "P PURE PET PURE" 3. "SMOKE CLEAR TOXIN CLEAR" 4. "FLT4825 FLT4850PT FLT4825SM FLT4825VO" 5. "B PET B SMOKE" 6. "voc *Use Guardian Technologies authentic replacement parts to ensure proper fit and performance in your air purifier"
  • Don't Be Fooled: Genuine Exceeds Imitations Fail PA Standards HPA Standards Removes 99.97% of harmful particles down to .01 microns X Removes <85% of harmful particles down to 5 microns Guaranteed fit & performance X Loose fit & poor quality B germguardian - N germguardian PURE germguardian HEPA - - I - - - - - na - - germguardian - - - 82718- 28 1 - - - - guardian fut - - TECHNOLOGIES- A au AUTHENTIC REPLACEMENT SINCE 2005 Packaging may vary FAILED Look for the AUTHENTIC REPLACEMENT Badge!
  • Superior Filtration Technology: HPA Pure Filter - 140 pleats and 9 square feet of filter area captures 99.97% of particles. Carbon Pre-Filter - Captures large particles and absorbs odors. Filter Size: Use Guardian Technologies authentic replacement parts to ensure proper fit and performance in your air purifier.
  • REPLACEMENT FILTER COMPATIBLE WITH: * GermGuardian AC4825 * GermGuardian AC4825W * GermGuardian AC4880 * Guardian Technologies AUTHENTIC REPLACEMENT * GermGuardian AC4870 * GermGuardian AC4850PT * GermGuardian AC4820 * GermGuardian AC4900 * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT * GermGuardian AC4300BPTCA * GermGuardian AC4300WPT
  • SMELL NO! FLT22CB4 carbon pre-filter layer can be replaced every 2-3 months to help reduce common household odors and extend filter life.
  • UNLIKE DUST WE NEVER SETTLE C ETD in - Intertek CALIFORNIA L ELO SI.ES INERGYST SAR RoHS compliant BOLATEE S ATAANPAIE Designed & Engineered in the U.S. 3rd Party Tested from Independent Labs

Genuine HEPA Pure Replacement Filter B for GermGuardian Air Purifier Models AC4800 Series, AC4300, AC4900, CDAP4500 - Black

Model:
FLT4825
SKU:
8892084
Highly rated by customers for:
Your price for this item is $29.99

Customer reviews

Rating 4.7 out of 5 stars with 283 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

Pros mentioned filter

Cons mentioned filter

There aren't enough negative mentions yet.
96%would recommend to a friend

Customers are saying

Customers are satisfied with the Genuine HEPA Pure Replacement Filter, particularly noting its positive impact on air quality and its long filter life. Users appreciate its ease of installation and perfect fit for compatible air purifier models. Additional benefits include good performance, reasonable price, and quiet operation.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 9 Showing 161-180 of 283 reviews
  • Pros mentioned:
    Fit

    filter

    |
    |
    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    worked and fit as it should and was sent here fast

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Works great!

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to install! Worked for my first germ guardian I purchase years ago!

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    Filter

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great replacement filter haven’t needed it just yet..

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    GermGuardian filter

    |
    |
    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love our GermGuardians, we have two of them in our house

    I would recommend this to a friend

  • You can SEE the difference

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love this filter, you can see soooo much trapped hair and debris that it saves you from. I love my Germgaurdian!

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    Great product

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have it in a room with different animals and it works great I recommend

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    Good

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love it. Replaced it recently and love our germ guardian

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    good but expensive

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    these filters work great for our air purifier. we like the these verses others because they seem to work better with all the animals we have. there a little high priced but work great.

    I would recommend this to a friend
  • Pros mentioned:
    Filter life

    Works great

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These filters last a long time and are super efficient.

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    Cheaper filter

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Got on sale, easy to install good filter for germ guardian.

    I would recommend this to a friend
  • Pros mentioned:
    Air quality

    Filter

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great and keeps the air in bedroom clean & gd

    I would recommend this to a friend
  • Pros mentioned:
    Filter life

    good filter

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This filter works well. It is hard to order it most of the time.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Easy!

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy replacement filter for the GermGuardian 4800 Series 3-in-1 Air Cleaning System.

    I would recommend this to a friend
  • Pros mentioned:
    Filter life

    great filter

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought the filter so that we will have it on hand when it's time to change it.

    I would recommend this to a friend

  • Service

    |
    |
    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The staff was knowledgeable, polite, and very helpful. I would recommend best buy for many of their products.

    I would recommend this to a friend
  • Pros mentioned:
    Fit

    Filter

    |
    |
    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good fikter, fits into the air purifier. Will buy again

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Easier than other filters to change

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This air filter seems to help with allergies, etc. The filters are always complicated to change. This one is pretty simple and easier to change.

    I would recommend this to a friend
  • Pros mentioned:
    Filter life

    Great Filter

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Filter lasts as long or longer as listed, depending on use. Very good purchase!

    I would recommend this to a friend

  • HEPA FILTER REPLACEMENT

    |
    |
    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    WORKS LIKE A CHARM... I PURCHASE THE GERMGUARDIAN HEPA AC4825 AND WORKS VERY GOOD RUN IT EVERYDAY AND HAD TO GET NEW FILTER...

    I would recommend this to a friend
  • Pros mentioned:
    Filter life

    its good

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    filter is good. I change mine every 4 months. some ppl say you can clean the filter I just replace them

    I would recommend this to a friend
Page 9, Showing 161-180 of 283 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.