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Item #:
233572275
KN6391 Replacement Filter Compatible with FreAire KN6391, Tolife TZ-K1 and AROEVE MK01 MK06 MG01JH Air Purifiers, 3-in-1 H13 True HEPA Filtration,
87% of respondents would recommend this to a friend
Item #:
233572275
MMK 121842
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Imported from USA store
Order now and get it around Friday, October 09
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Engineered with an H13 True HEPA layer, the KN6391 replacement filter offers 99.97% efficiency against airborne substance as small as 0.3 microns.
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What Stands Out
3-in-1 Filtration
Combines H13 True HEPA, activated carbon, and pre-filter technology for superior air purification, effectively trapping allergens, smoke, and odors for a healthier environment.
Wide Compatibility
Designed to fit FreAire, Tolife, and AROEVE air purifiers, ensuring versatility and convenience for users with different brands without sacrificing performance.
Value Pack
Includes two filters, providing extended usage and cost savings, allowing users to maintain optimal air purification without frequent replacements.
Product Details
| Product Dimensions (L x W x H) | 10.63 x 5.31 x 3.94 inches (27 x 13.5 x 10 cm) |
| Item Weight | 10.4 ounces (294.84 grams) |
| Manufacturer | Ouheal |
Who Should Buy?
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Allergy Sufferers
Users with allergies benefit from H13 True HEPA filtration, capturing fine particles and allergens effectively.
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Pet Owners
Individuals with pets find the activated carbon filter helpful in reducing pet dander and odors in their homes.
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Urban Dwellers
Residents in polluted cities will appreciate the air purifiers' ability to filter out harmful airborne pollutants.
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Heavy Industrial Use
This filter may not be suitable for industrial environments with high levels of toxic particles or chemicals present.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What are the main features of the KN6391 Replacement Filter?
Answer: The KN6391 Replacement Filter boasts a 3-in-1 design that includes H13 True HEPA filtration, a high-efficiency activated carbon filter, and a pre-filter. This combination effectively captures 99.97% of particles as small as 0.3 microns, such as dust, pollen, and pet dander. The activated carbon layer absorbs odors and harmful chemicals, enhancing the air quality in your home. Whether you have pets, live in a polluted area, or suffer from allergies, this filter is designed to provide clean and fresh air, contributing to a healthier living environment. -
Question:
How often should I replace the KN6391 filter?
Answer: It's recommended to replace the KN6391 filter every 6 to 12 months, depending on usage and air quality in your living space. For those in areas with high pollution levels, or for households with pets, more frequent replacements may be necessary. Regular maintenance of your air purifier by changing filters as needed ensures optimal performance and air quality. Monitoring filter indicators on your device can also help determine when a change is necessary, so you can maintain a fresh and healthy atmosphere. -
Question:
Are these filters compatible with other air purifier models?
Answer: Yes, the KN6391 Replacement Filter is designed specifically for FreAire KN6391, Tolife TZ-K1, and AROEVE MK01 MK06 MG01JH air purifiers. This compatibility ensures that you can enjoy the same high-quality filtration performance across different models, providing versatility depending on your air quality needs. Always check the product specifications for your device to ensure compatibility when purchasing replacement filters, as using the right filter helps maintain the efficacy of your air purifier. -
Question:
How does the H13 True HEPA filtration work?
Answer: H13 True HEPA filtration works by trapping particles as they pass through the filter material. Made of fine mesh fibers, this type of filtration can capture up to 99.97% of airborne particles as small as 0.3 microns. This includes allergens like pollen, dust, and smoke particles. When used in conjunction with activated carbon for odor absorption, it creates a more comprehensive air cleaning solution. This is particularly beneficial for allergy sufferers or those living in urban environments, where air quality may be compromised. -
Question:
What benefits does the activated carbon layer provide?
Answer: The activated carbon layer in the KN6391 Replacement Filter significantly enhances air quality by absorbing unpleasant odors and various harmful chemicals present in the air. It is particularly effective against smoke, pet odors, cooking smells, and VOCs (volatile organic compounds). This additional filtration layer ensures a fresher-smelling home environment, which is especially useful in kitchens or areas where pets reside. By combining particulate filtration with odor control, this filter provides an all-around solution for maintaining clean and pleasant indoor air. -
Question:
Can I clean and reuse these filters?
Answer: No, the KN6391 Replacement Filters are not designed for cleaning or reuse. Attempting to clean the filter can compromise the integrity of its filtration properties, making it less effective at trapping airborne pollutants. Instead, it’s best to replace the filter with a new one to ensure that your air purifier functions optimally. Using a new filter regularly guarantees you are providing the best air quality possible in your space, enhancing your overall health and comfort. -
Question:
What is the size of the KN6391 Replacement Filter?
Answer: The KN6391 Replacement Filter is designed to fit specific air purifier models, and typically measures approximately 7 inches by 7 inches by 3 inches. These dimensions enable it to fit snugly within the compatible air purifiers, ensuring a proper seal for optimal airflow and filtration. Having the correct size filter is crucial, as this affects not just fit, but also the efficiency of the air purification process. It is advisable to check your air purifier’s manual for exact specifications to avoid any discrepancies. -
Question:
What kind of maintenance does the KN6391 filter need?
Answer: The KN6391 Replacement Filter requires minimal maintenance; however, it’s crucial to keep an eye on how frequently it accumulates dust and other particles. Regularly check the filter to see if it appears dirty or if the indicator light on your air purifier shows it's time for a change. This ensures that your air purifier operates efficiently and effectively. In addition, keeping the air purifier itself clean and placing it in an unobstructed area can help prolong the lifespan of the filter. -
Question:
Can I buy the KN6391 Replacement Filter in bulk?
Answer: Yes, the KN6391 Replacement Filters are available both individually and in bulk packages, such as a 2-pack. Buying in bulk can be advantageous for users who prefer having extra filters on hand, ensuring you're always prepared for replacements as needed. This is particularly useful for households with multiple air purifiers or for those residing in areas with challenging air quality, where consistent filtration is crucial for health and comfort. -
Question:
Where can I buy the KN6391 Replacement Filter?
Answer: You can buy the KN6391 Replacement Filter at Ubuy, which offers a wide selection of compatible filters for various air purifier models. Ubuy provides a convenient platform to find and purchase these filters, ensuring you receive authentic and high-quality products. To ensure you have the best purification experience, simply visit Ubuy’s website and search for the KN6391 Replacement Filter to access the product listing and complete your purchase.
Ouheal Editorial Review
KN6391 Replacement Filter Compatible with FreAire KN6391, Tolife TZ-K1 and AROEVE MK01 MK06 MG01JH Air Purifiers features a 3-in-1 H13 True HEPA filtration system that effectively captures allergens and pollutants. With its high-efficiency activated carbon filter, it enhances air quality by reducing odors. Customers have expressed satisfaction with easy installation and noted that while these filters fit slightly more loosely than original products, they still maintain excellent performance. The dimensions of the filter are 10.63 x 5.31 x 3.94 inches, and it weighs 10.4 ounces, making it a straightforward replacement option for maintaining your air purifier's efficacy.
Customer Reviews & Ratings
55 customers ratings
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5 Star
76%
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4 Star
14%
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3 Star
3%
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2 Star
2%
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1 Star
5%
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Pros
- Easy to install and replace filters
- High-efficiency HEPA filtration system
- Effective in reducing indoor pollutants
- Great value for a 2-pack filter
- Compatible with multiple air purifier models
Cons
- Fit more loosely than the original filters
Platform Trust & Buyer Confidence
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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MMK 121842
Order now and get it around Friday, October 09
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Features & Benefits
- Perfectly compatible with FreAire KN6391 and other select air purifiers.
- Features a 3-in-1 filtration system for comprehensive air cleaning.
- High-efficiency H13 True HEPA filter captures 99.97% of airborne particles.
- CADR of 215 ft²/hr ensures fast and effective air purification.
- Easy installation with no tools required for replacement.
- Assured quality and exceptional customer service from Ouheal.
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