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diffuser filters

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Best Buy customers often prefer the following products when searching for diffuser filters.

A diffuser is a great way to add moisture to the air without adding humidity. It can also help to keep your heating and cooling costs down. Using a diffuser is easy, but you need to change the filters regularly. Browse the top-ranked list of diffuser filters below along with associated reviews and opinions.

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  1. Genuine HEPA Pure Replacement Filter M for GermGuardian Air Purifier Models AC4700BDLX and AC4700DLX - Black/White - Front_Zoom
    Top comment

    "Air filter...Good air filter, last a long time. Price is good.....Filter...Able to to access easy, able to put filter in !!!!!"

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    Product Description

    GermGuardian FLT4700 HEPA GENUINE Replacement Filter M is a combination filter. It includes a HEPA filter, a pre-filter/activated carbon filter layer that captures odors from cooking, pets and smoking, while helping to improve indoor air quality. The 360 degree HEPA Filter captures 99.97% of dust and allergens as small as 0.1 microns such as household dust, pet dander, mold spores and plant pollens. It is recommended to use with the GermGuardian AC4700B and AC4711W. The use of this genuine Guardian Technologies replacement part will maintain the product's performance.
    See all Air Purifier Filters & Parts
    Top comment

    "Air filter...Good air filter, last a long time. Price is good.....Filter...Able to to access easy, able to put filter in !!!!!"

    See all customer reviews

    Product Description

    GermGuardian FLT4700 HEPA GENUINE Replacement Filter M is a combination filter. It includes a HEPA filter, a pre-filter/activated carbon filter layer that captures odors from cooking, pets and smoking, while helping to improve indoor air quality. The 360 degree HEPA Filter captures 99.97% of dust and allergens as small as 0.1 microns such as household dust, pet dander, mold spores and plant pollens. It is recommended to use with the GermGuardian AC4700B and AC4711W. The use of this genuine Guardian Technologies replacement part will maintain the product's performance.
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  2. Blueair - Pre-filter in Arctic Trail for Blue Pure 411 Auto Air Purifier - Dark Gray - Front_Zoom
    Top comment

    "Love this filters look in my home and easiness to replace....Very minimalist. Same filter as the original. Pretty easy to install."

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    Product Description

    Blueair Pre-filter in Arctic Trail color for the Blue Pure 411 Auto air purifier. The pre-filter may also be used with Blue Pure 411 and MINI models at a slightly increased noise level (2 dB). Pre-filter is not compatible with the 411+ model. Form meets function in Blue Pure 411 Auto's colorful pre-filters. The fabric allows you to customize the color to match your style, as well as extend the life of the primary filter, catching large airborne particles such as dust, lint, pollen, and pet hair. Vacuum the exterior of the fabric pre-filter to remove visible dust and dirt as often as you'd like. Removable, washable, and reusable the pre-filter is designed to be used again and again. When it requires a deeper clean, throw the fabric in the washing machine on a gentle, low-temperature cycle. Hang to dry. A hidden compartment in the fabric pre-filter keeps the power cord hidden out of sight. Available in five pre-filter colors inspired by natural Scandinavian landscapes; Arctic Trail (gray), Winter Reed (light gray), Archipelago Sand (pink), Aurora Light (green), and Night Waves (navy). Pre-filter in Arctic Trail color comes standard with air purifier.
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    Top comment

    "Love this filters look in my home and easiness to replace....Very minimalist. Same filter as the original. Pretty easy to install."

    See all customer reviews

    Product Description

    Blueair Pre-filter in Arctic Trail color for the Blue Pure 411 Auto air purifier. The pre-filter may also be used with Blue Pure 411 and MINI models at a slightly increased noise level (2 dB). Pre-filter is not compatible with the 411+ model. Form meets function in Blue Pure 411 Auto's colorful pre-filters. The fabric allows you to customize the color to match your style, as well as extend the life of the primary filter, catching large airborne particles such as dust, lint, pollen, and pet hair. Vacuum the exterior of the fabric pre-filter to remove visible dust and dirt as often as you'd like. Removable, washable, and reusable the pre-filter is designed to be used again and again. When it requires a deeper clean, throw the fabric in the washing machine on a gentle, low-temperature cycle. Hang to dry. A hidden compartment in the fabric pre-filter keeps the power cord hidden out of sight. Available in five pre-filter colors inspired by natural Scandinavian landscapes; Arctic Trail (gray), Winter Reed (light gray), Archipelago Sand (pink), Aurora Light (green), and Night Waves (navy). Pre-filter in Arctic Trail color comes standard with air purifier.
    See all Air Purifiers
    See all Air Purifiers
  3. Genuine HEPA Pet Pure Replacement Filter C for GermGuardian AC5000 Series Air Purifiers - White - Front_Zoom
    Top comment

    "Not as good as the factory filters...With that being said these are still good filters....it's ok. the last filter was much better quality,...I've been buying there filters for several years, in the past years the filter quality was much better than this one. in the past I had recommended germ guardian I can't do that again since this last filter is of inferior quality."

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    Product Description

    Still collecting hair in every nook and cranny, despite your best efforts to keep it clean? Our Pet Pure(R) Genuine HEPA Filter is specifically designed to capture more hair and odors from your furry friends, because we know it’s not Roscoe’s fault for being fluffy. Choose our Pet Pure(R) HEPA Filter Replacement to take the first step towards a cleaner, fresher, and healthier home. Experience the difference in air quality and bid farewell to pet-related allergens and odors with our advanced HEPA Filter Replacement, meticulously crafted to tackle pet dander, hair, and odors with exceptional efficiency. The Pet Pure(R) HEPA Filter Replacement is infused with Pet Pure Filter Treatment, a powerful anti-microbial agent. This treatment actively inhibits the growth of mold, mildew, and odor-causing bacteria on the surface of the filter, ensuring that it remains clean and fresh for extended periods. The HEPA (High-Efficiency Particulate Air) filter efficiently captures even the tiniest airborne particles, such as dust, pollen, pet dander, and mold spores. Its high-performance design guarantees the trapping of 99.97% of particles as small as 0.1 microns, promoting a healthier living environment. *Initial efficiency value. As small as 0.1 microns from the air passing through the filter media. Compatible with [the GermGuardian 28" Tower Air Purifier Series, our HEPA Filter Replacement is designed for easy installation and hassle-free maintenance. We recommend replacing the filter every 6 months to ensure optimal performance and efficiency, keeping your air quality at its best. Carbon filters (FLT28CB4) can be replaced every 2-3 months to extend the life of the HEPA Filter .
    See all Air Purifier Filters & Parts
    Top comment

    "Not as good as the factory filters...With that being said these are still good filters....it's ok. the last filter was much better quality,...I've been buying there filters for several years, in the past years the filter quality was much better than this one. in the past I had recommended germ guardian I can't do that again since this last filter is of inferior quality."

    See all customer reviews

    Product Description

    Still collecting hair in every nook and cranny, despite your best efforts to keep it clean? Our Pet Pure(R) Genuine HEPA Filter is specifically designed to capture more hair and odors from your furry friends, because we know it’s not Roscoe’s fault for being fluffy. Choose our Pet Pure(R) HEPA Filter Replacement to take the first step towards a cleaner, fresher, and healthier home. Experience the difference in air quality and bid farewell to pet-related allergens and odors with our advanced HEPA Filter Replacement, meticulously crafted to tackle pet dander, hair, and odors with exceptional efficiency. The Pet Pure(R) HEPA Filter Replacement is infused with Pet Pure Filter Treatment, a powerful anti-microbial agent. This treatment actively inhibits the growth of mold, mildew, and odor-causing bacteria on the surface of the filter, ensuring that it remains clean and fresh for extended periods. The HEPA (High-Efficiency Particulate Air) filter efficiently captures even the tiniest airborne particles, such as dust, pollen, pet dander, and mold spores. Its high-performance design guarantees the trapping of 99.97% of particles as small as 0.1 microns, promoting a healthier living environment. *Initial efficiency value. As small as 0.1 microns from the air passing through the filter media. Compatible with [the GermGuardian 28" Tower Air Purifier Series, our HEPA Filter Replacement is designed for easy installation and hassle-free maintenance. We recommend replacing the filter every 6 months to ensure optimal performance and efficiency, keeping your air quality at its best. Carbon filters (FLT28CB4) can be replaced every 2-3 months to extend the life of the HEPA Filter .
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  4. Charcoal and HEPA Filter for GermGuardian AC5600WDLX - Black/White - Front_Zoom
    Top comment

    "Standard GermGuardian filter; it is what it is....There isn't much point in reviewing this filter as a filter. It goes with a particular GermGuardian air filter unit. ...Filter replacement...Great filter for the air purifier, it collected a lot of dust."

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    Product Description

    Eliminate unwanted odors with this GermGuardian Hygia HEPA replacement filter. The charcoal filter traps large-particle allergens, while the activated charcoal filter removes unpleasant odors and fumes emitted from chemicals and household products for a fresh-smelling interior. This GermGuardian Hygia HEPA replacement filter has parts that fit snugly for easy operation.
    See all Air Purifier Filters & Parts
    Top comment

    "Standard GermGuardian filter; it is what it is....There isn't much point in reviewing this filter as a filter. It goes with a particular GermGuardian air filter unit. ...Filter replacement...Great filter for the air purifier, it collected a lot of dust."

    See all customer reviews

    Product Description

    Eliminate unwanted odors with this GermGuardian Hygia HEPA replacement filter. The charcoal filter traps large-particle allergens, while the activated charcoal filter removes unpleasant odors and fumes emitted from chemicals and household products for a fresh-smelling interior. This GermGuardian Hygia HEPA replacement filter has parts that fit snugly for easy operation.
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  5. Levoit - HEPA Replacement Filter for AirNow Purifier - 1pk - White - Front_Zoom
    Top comment

    "Great filters...Perfect way to filter out those dust mites that I’m allergic to....The larger filter can be replaced one or twice a year."

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    Product Description

    This certified, genuine Levoit True HEPA Replacement Filter for the AirNow Air Purifier is used to keep your air purifier at its best working condition and capacity. The pre-filter, HEPA filter and activated carbon filter work together to remove 99.9% of dust, pollen, smoke, odor, allergies, mold spores, and pet dander. This filters particles as small as 0.3 microns and larger air pollution of PM 2.5. This filter will not release any strange smell and works to remove unwanted odor and particles. This is perfect for those who are sensitive to the surrounding air or anyone who wants to improve the air quality. Ensure to remove the plastic bag on the filter before running the air purifier. The activated carbon pre-filer should be replaced every 2-3 months. Your air purifier comes with 2 extra pre-filters. To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area. Compatible with H126 series.
    See all Air Purifier Filters & Parts
    Top comment

    "Great filters...Perfect way to filter out those dust mites that I’m allergic to....The larger filter can be replaced one or twice a year."

    See all customer reviews

    Product Description

    This certified, genuine Levoit True HEPA Replacement Filter for the AirNow Air Purifier is used to keep your air purifier at its best working condition and capacity. The pre-filter, HEPA filter and activated carbon filter work together to remove 99.9% of dust, pollen, smoke, odor, allergies, mold spores, and pet dander. This filters particles as small as 0.3 microns and larger air pollution of PM 2.5. This filter will not release any strange smell and works to remove unwanted odor and particles. This is perfect for those who are sensitive to the surrounding air or anyone who wants to improve the air quality. Ensure to remove the plastic bag on the filter before running the air purifier. The activated carbon pre-filer should be replaced every 2-3 months. Your air purifier comes with 2 extra pre-filters. To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area. Compatible with H126 series.
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  6. Dyson - 360° Glass HEPA Filter (TP01, TP02, BP01) - White - Front_Zoom

    Product Description

    Replacement HEPA filter engineered for the following Dyson purifiers: TP01, TP02, and BP01. We recommend replacing your filter every 12 months. Over time, filters can get clogged with pollutants, reducing air flow. Using Dyson Genuine replacement filters ensures a sealed filtration system, HEPA standard and proper functioning of the machine.
    See all Air Purifier Filters & Parts

    Product Description

    Replacement HEPA filter engineered for the following Dyson purifiers: TP01, TP02, and BP01. We recommend replacing your filter every 12 months. Over time, filters can get clogged with pollutants, reducing air flow. Using Dyson Genuine replacement filters ensures a sealed filtration system, HEPA standard and proper functioning of the machine.
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  7. Dyson - 360° Glass HEPA Filter (HP01, HP02, DP01) - White - Front_Zoom

    Product Description

    Replacement HEPA filter engineered for the following Dyson purifiers: HP01, HP02, and DP01. We recommend replacing your filter every 12 months. Over time, filters can get clogged with pollutants, reducing air flow. Using Dyson Genuine replacement filters ensures a sealed filtration system, HEPA standard and proper functioning of the machine.
    See all Air Purifier Filters & Parts

    Product Description

    Replacement HEPA filter engineered for the following Dyson purifiers: HP01, HP02, and DP01. We recommend replacing your filter every 12 months. Over time, filters can get clogged with pollutants, reducing air flow. Using Dyson Genuine replacement filters ensures a sealed filtration system, HEPA standard and proper functioning of the machine.
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  8. Genuine HEPA Pet Pure Replacement Filter B for GermGuardian Air Purifier Models AC4800 Series, AC4300, AC4900, CDAP4500 - Black - Front_Zoom
    Top comment

    "much needed refill filters...you need back up filters if you plan on using the hepa option...Great filter...Filters work great and price is very reasonable. First time having to replace one. "

    See all customer reviews

    Product Description

    Still collecting hair in every nook and cranny, despite your best efforts to keep it clean? Our Pet Pure(R) Genuine HEPA Filter is specifically designed to capture more hair and odors from your furry friends, because we know it’s not Roscoe’s fault for being fluffy. Choose our Pet Pure(R) HEPA Filter Replacement to take the first step towards a cleaner, fresher, and healthier home. Experience the difference in air quality and bid farewell to pet-related allergens and odors with our advanced HEPA Filter Replacement, meticulously crafted to tackle pet dander, hair, and odors with exceptional efficiency. The Pet Pure(R) HEPA Filter Replacement is infused with Pet Pure Filter Treatment, a powerful anti-microbial agent. This treatment actively inhibits the growth of mold, mildew, and odor-causing bacteria on the surface of the filter, ensuring that it remains clean and fresh for extended periods. The HEPA (High-Efficiency Particulate Air) filter efficiently captures even the tiniest airborne particles, such as dust, pollen, pet dander, and mold spores. Its high-performance design guarantees the trapping of 99.97% of particles as small as 0.1 microns, promoting a healthier living environment. *Initial efficiency value. As small as 0.1 micron from the air passing through the filter media. Compatible with the GermGuardian 22" Tower Air Purifier Series, our HEPA Filter Replacement is designed for easy installation and hassle-free maintenance. We recommend replacing the filter every 6 months to ensure optimal performance and efficiency, keeping your air quality at its best. Carbon filters (FLT22CB4) can be replaced every 2-3 months to extend the life of the HEPA Filter .
    See all Air Purifier Filters & Parts
    Top comment

    "much needed refill filters...you need back up filters if you plan on using the hepa option...Great filter...Filters work great and price is very reasonable. First time having to replace one. "

    See all customer reviews

    Product Description

    Still collecting hair in every nook and cranny, despite your best efforts to keep it clean? Our Pet Pure(R) Genuine HEPA Filter is specifically designed to capture more hair and odors from your furry friends, because we know it’s not Roscoe’s fault for being fluffy. Choose our Pet Pure(R) HEPA Filter Replacement to take the first step towards a cleaner, fresher, and healthier home. Experience the difference in air quality and bid farewell to pet-related allergens and odors with our advanced HEPA Filter Replacement, meticulously crafted to tackle pet dander, hair, and odors with exceptional efficiency. The Pet Pure(R) HEPA Filter Replacement is infused with Pet Pure Filter Treatment, a powerful anti-microbial agent. This treatment actively inhibits the growth of mold, mildew, and odor-causing bacteria on the surface of the filter, ensuring that it remains clean and fresh for extended periods. The HEPA (High-Efficiency Particulate Air) filter efficiently captures even the tiniest airborne particles, such as dust, pollen, pet dander, and mold spores. Its high-performance design guarantees the trapping of 99.97% of particles as small as 0.1 microns, promoting a healthier living environment. *Initial efficiency value. As small as 0.1 micron from the air passing through the filter media. Compatible with the GermGuardian 22" Tower Air Purifier Series, our HEPA Filter Replacement is designed for easy installation and hassle-free maintenance. We recommend replacing the filter every 6 months to ensure optimal performance and efficiency, keeping your air quality at its best. Carbon filters (FLT22CB4) can be replaced every 2-3 months to extend the life of the HEPA Filter .
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  9. Levoit - HEPA Replacement Filter for Airzone Purifier - 1pk - White - Front_Zoom
    Top comment

    "Genuine Levoit replacement filters are the best!...Excellent filters, we only get the genuine Levoit brand replacement filters for our LV-H134. ...Great filter...Excellent filter. I replace it every six months..."

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    Product Description

    The True HEPA Replacement Filter for the Airzone Air Purifier capture at least 99.97% of airborne particles 0.3 microns in size, so you can enjoy fresh air even longer. Featuring greater adsorption and a honeycomb structure, the improved filters cover a larger surface area.To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area. Compatible with H134 series. Remember to remove the filter’s plastic packaging before placing it into the air purifier
    See all Air Purifier Filters & Parts
    Top comment

    "Genuine Levoit replacement filters are the best!...Excellent filters, we only get the genuine Levoit brand replacement filters for our LV-H134. ...Great filter...Excellent filter. I replace it every six months..."

    See all customer reviews

    Product Description

    The True HEPA Replacement Filter for the Airzone Air Purifier capture at least 99.97% of airborne particles 0.3 microns in size, so you can enjoy fresh air even longer. Featuring greater adsorption and a honeycomb structure, the improved filters cover a larger surface area.To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area. Compatible with H134 series. Remember to remove the filter’s plastic packaging before placing it into the air purifier
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
  10. Levoit - HEPA Replacement Filter for Aerone Purifier - 1pk - White - Front_Zoom
    Top comment

    "Hepa Replacement Filters...Replacement filters are easy to install and very efficient. I would highly recommend these filters....Levoit filters...Great we needed the filter asap. The product and received in a timely manner."

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    Product Description

    This genuine Levoit Air Purifier Filter replacement for the Levoit Aerone True HEPA Air Purifier employs a three-stage filtration including Fine Preliminary, True HEPA and Activated Carbon filters to remove 99. 97% of dust, allergens, bacteria and odors. To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area. Compatible with H132 series.
    See all Air Purifier Filters & Parts
    Top comment

    "Hepa Replacement Filters...Replacement filters are easy to install and very efficient. I would highly recommend these filters....Levoit filters...Great we needed the filter asap. The product and received in a timely manner."

    See all customer reviews

    Product Description

    This genuine Levoit Air Purifier Filter replacement for the Levoit Aerone True HEPA Air Purifier employs a three-stage filtration including Fine Preliminary, True HEPA and Activated Carbon filters to remove 99. 97% of dust, allergens, bacteria and odors. To do its best work, Levoit recommends replacing the filter every 6-8 months - the filter may need to be replaced sooner or later depending on the air quality in your area. Compatible with H132 series.
    See all Air Purifier Filters & Parts
    See all Air Purifier Filters & Parts
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