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After deep searching of an insanely large number of articles and reviews by our intelligent Artificial Intelligence & Machine Learning tools; and deep reprocessing, inspection and screening by our specialist hi-technology gurus, the golden shortlist for the Best Air Purifier Filters (2021) is ultimately assembled.

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In order to come up with the Best Air Purifier Filters (2021), our dynamic platforms and experts have taken many parameters into account such as product fitness for use, user-friendly features and give buyer satisfaction, defect and deficiency-free, conformance of standards, value for money, dependability, user-friendly design, quality conformance to user requirements and guidlines, protection and safety, real buyer satisfaction and lots of others. It is important to note that each user has different needs so please consider the below benchmarking as a guide and not as a gospel. Nonetheless, in the below shortlist you can certainly find the overall best ones regardless of your needs.

Our dynamic platforms and skillful hi-tech experts work hard to identify the best product options. We feel that our review analysis can help you simplify your purchase decision and choose among the truly Best Air Purifier Filters (2021).

Best Air Purifier Filters

SaleBest Choice No. 1
Germ Guardian FLT4825 HEPA GENUINE Air Purifier Replacement Filter B for GermGuardian AC4300BPTCA, AC4900CA, AC4825, AC4825DLX, AC4850PT, CDAP4500BCA, CDAP4500WCA and More, 1-Pack
  • Why buy genuine: genuine germguardian replacement parts are essential for maintaining product performance, as your purifier is only as powerful and effective as the filter you put inside
  • Hassle free fit: germguardian replacement parts are designed for a particular unit style and fit like a glove. The fit of your new filter may vary from the original due to change in materials for a less snug fit. This WON’T affect filter performance
  • Breathe fresh and cleaner air: a HEPA filter, ACtivated charcoal layer, and pre filter work to help improve indoor air quality
  • Air purifier models: replACement filter for germ guardian air purifier models AC4300bptca, AC4900ca, AC4825, AC4825dlx, AC4850pt, cdap4500bca, cdap4500wca, AC4820, pure guardian model ap2200ca and blACk + decker bxap148. Only one single combination filter needs to be replaced every 6-8 months depending on the use of the product
  • HEPA filter: reduces up to 99. 97% of dust, pollen, pet dander, mold spores, and allergens as small as . 3 microns from the air
Best Choice No. 2
LEVOIT Air Purifier LV-H132 Replacement Filter, H13 True HEPA and Activated Carbon Filters Set, LV-H132-RF (2 Pack)
  • Use only genuine LEVOIT lv-h132 replacement filters to keep your air purifier at its best working condition and capacity
  • Fine preliminary, H13 true hepa filter and activated carbon filter. It removes 99.97% of dust, pollen, smoke, odor, mold spores, and pet dander
  • Perfect for those who are sensitive to the surrounding air quality. It will not release hazardous substances or ozone
  • Filters are sealed to protect their lifetime. It is recommended to replace air filters every 6 months. Remove filters from plastic packaging before placing them into air purifier
  • 100Percent satisfaction . If you need additional assistance, contact the helpful LEVOIT support
Best Choice No. 3
LEVOIT Core 300 Air Purifier Replacement Filter, 3-in-1 Pre-Filter, True HEPA Filter, High-Efficiency Activated Carbon Filter, Core 300-RF (1 Pack)
  • Protect Your Investment: Search for B07RSZSYNC or Core300-RF for the genuine Levoit replacement filter to ensure what you’re buying is worthy of your investment
  • Core 300 Replacement Filter: Exclusively designed for Levoit Core 300 air purifier to maintain its peak performance. With cost-effective price to save much cost for your all year round air cleaning need. It is recommended to replace filters for every 6-8 months
  • Japan-imported True HEPA Technology: Adopt True HEPA Filter with H13 grade which meets the High-Efficiency Particulate Air (HEPA) standard. It filters the fine airborne particles such as pet dander, dust mites, and pollen, effectively helping improve allergies
  • Trap Large Particle: Ultra-fine Nylon Pre-Filter captures large particles such as dust, lint, fibers, hair, and pet fur, also helpful to maximize the filter’s life
  • Trap Household Odors: High-grade granular activated carbon filter physically absorbs unwanted odors and fume, such as smoke, cooking smells and pet odors, as well as filtering volatile organic compounds (VOCs), ideal for households with pets, cooking and smokers
Best Choice No. 4
Kloudi HEPA Air Purifier Air Filter with Air Pretreatment System Air Cleaner Eliminate Smoke, Dust, Pollen, Dander Air Purifiers for Home, Bedroom, Living Room, Kitchen and Office
  • Efficiency Filtration System: Our HEPA Air Purifier features an efficient filtration system, powerful enough to captures up dust, pollen, smoke, odor, pet dander. It can filter particles as small as 0.3 microns and air pollution of PM 2.5, eliminate 99.97% of tiny objects in an indoor environment of 215sq.ft (20m³).
  • Make Life Healthier: We clearly understand your concerns and we have conducted countless experiments on our air pretreatment system. After experiments, we found that as long as the ultraviolet wavelength is greater than 200nm does not produce ozone and other harmful substances.
  • Ultra-Quiet: Thanks to the new brushless motor, the air purifier can operate at a decibel as low as 22db when working. It makes air cleaner lightweight and quiet, with no annoying sound. Choose us, and you will discover a new way of life.
  • Energy-Saving Low Power: Choose one of the 3 timer options and let the purifier turn off when it is done. The operating power as low as 17W allows the purifier to save 30% on electricity bills than other air purifiers. You don’t need to check your mailbox, because you will get rid of the trouble of electricity bills.
  • Air Filter With Fragrance Sponge: Add a drop of essential oil (Not Included) and some water into the sponge below the filter air outlet, then fragrance will flow with air movements. (Such as Citrus, Honeydew Melon, Musk, Vanilla, Orris or Vetiver)
Best Choice No. 5
DerBlue 4pcs Replacement HEPA Filters for Holmes AER1 Type Total Air Filter,HAPF30AT for Purifier HAP242-NUC
  • 1. Material:Be made up of high quality filter paper and durable plastic frame,keeping it working for a long time. Product size: 10 x 4.6 x 1.2 inch.
  • 2. Evidently improves the air quality. It also helps deodorize any unfavorable household smell.
  • 3. Compatible with Holmes Units: CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, HAP9424;Compatible with Bionaire Units: BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520.
  • 4. For best results change every 4 months.
  • 5. Package:you’ll get 4pcs Filter for the air purifier .Spare filter allows your air purifier not to wait
SaleBest Choice No. 6
LEVOIT Air Purifier LV-PUR131 Replacement Filter, True HEPA & Activated Carbon Filters Set, LV-PUR131-RF
  • Note: only Genuine Levoit Replacement Filter can guarantee the performance of your air purifier.
  • H13 True Hepa Technology: filters 99. 97% dust, pollen, smoke, odors, mold spores, and pet dander. The air filters catch particles as small as 0. 3 microns
  • 3-Stage Filtration System: H13 True HEPA, fine preliminary filter, and heavy duty activated carbon filters reduce unwanted odors in your living spaces. Perfect for anyone wanting to improve air quality
  • Properly sealed: filters are sealed to protect their lifetime. It is recommended to replace air filters every 6 months. Remove filters from plastic packaging before placing them into air purifier
  • Buy with confidence: 100% satisfaction. If you need additional assistance, contact the helpful LEVOIT support
SaleBest Choice No. 7
Honeywell The Doctor’s Choice HEPA Replacement Filter – 3 Pack
  • HEPA FILTER REPLACEMENT – This 3-pack of Certified Honeywell R HEPA filters help capture up to 99.97% of airborne particles as small as 0.3 microns* and help remove particles like pet dander, pollen, dust, dust mite debris & smoke.
  • WORKS WITH HONEYWELL AIR PURIFIERS FOR HOME – These air purifier filters work with these Honeywell models: HPA090, HPA100, HPA200, HPA300 Series; HPA8350; HPA3000, HPA5000 Series. Replace them yearly for best performance.
  • COMPATIBLE DOES NOT MEAN COMPARABLE – For best performance, use only genuine Honeywell air purifier filters. Compatible air purifier filter replacements are not guaranteed to offer the same performance or efficiency.
  • #1 BRAND RECOMMENDED BY ALLERGISTS** – Honeywell Air Purifier, The Doctor’s Choice, is the #1 brand recommended by allergists. Backed with a 5-year warranty, Honeywell air purifiers are a trusted partner in the fight against airborne particles.
  • EFFECTIVE AIR CLEANING AND CIRCULATION – A Honeywell Air Purifier circulates and filters air up to 5 times an hour – 120x per day in the stated room size. You can breathe easy knowing the air in your home is fresher, cleaner and has fewer allergens.
Best Choice No. 8
LEVOIT Vista 200 Air Purifier Replacement Filter, 3-in-1 Pre-Filter, True HEPA Filter, High-Efficiency Activated Carbon Filter, 2 Pack
  • LEVOIT Vista 200 Air Purifier Filter: Highly recommended to use this officially designated replacement filters (Vista 200-RF) to keep your Vista 200 air purifier at its best working efficiency and capacity, breathing fresher and cleaner air all the time
  • 3 Stages Filtration System: Use only genuine Vista 200 RF filter. Nylon Pre-Filter + True HEPA Filter + Activated Carbon Filter, more effectively aiding in the removal of 99. 97% of dust, pollen, smoke, odor, mold spore and pet dander, especially helpful for those who suffer from asthma or allergies
  • Easy Replacement Filter: the filter is easy to be replaced and disposed without any tool required, ensuring you to replace your old filter in minutes
  • Warm Maintenance Tip: When your air purifier filter gets old, the efficiency will decrease when your air purifier is running, leaving more pollutants in the air. Therefore, it is recommended to replace your filters for every 6-8 months
  • Full Satisfaction: Filters are sealed to protect their lifetime. Please remove the plastic packaging of the new filters before placing them into air purifier. Feel free to contact professional LEVOIT support team
Best Choice No. 9
LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, Black
  • High Performance: Enjoy fresh air in 12 minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air intake, the Core 300 refreshes the air 5x per hour in rooms as large as 219 ft² / 20 m²
  • Find Relief: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to capture 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor
  • Multiple Filter Choices: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in wildfire, smoke and VOCs. And if you’re a pet owner, try the Pet Allergy Filter to capture pet dander and absorb unpleasant odors.
  • Most Silent Air Cleaner: Choose Sleep Mode at night and then forget all about your air purifier while you sleep. QuietKEAP Technology reduces noise levels to a near-silent 24dB, ensuring the Core 300 won’t get in the way of a good night’s rest.
  • Sleek Design: The Core 300 practically serves your home while blending in with your decor. Its award-winning design (Red Dot, 2020) and modern white finish help your air purifier fit anywhere in your home/bedroom/room.
Best Choice No. 10
Holmes HAPF300AHD-U4R-2 Air Purifier Filter, 2 Count
  • 99.97 percent EFFICIENT AT REMOVING ALLERGENS: True HEPA Air Filter is 99.97 percent efficient in removing airborne allergens as small as 0.3 microns
  • 2-PACK: Includes 2 replacement filters
  • MAXIMIZE COMFORT AND FRESHNESS: Made of Cotton
  • FITS HOLMES AIR PURIFIER MODELS: Compatible with HAP412, HAP422, HAP424, HAP702, HAP706, HAP716, HAP1702, HAP2400, HAP9240, HAP9241, HAP9242, HAP9243, HAP9412, HAP9413, HAP9414, HAP9415, HAP9422, HAP9423, HAP9424, and HAP9425 models
  • FITS BIONAIRE AIR PURIFIER MODELS: Compatible with BAP260, BAP520, BAP815, BAP825, BAP9200, and BAP9700 models

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