🏷️ Honeywell

Honeywell HPA300 replacement filter

★★★★½ 4.5/5 (3 customer reviews)
Overall Score4.5/5.0
Estimated price
$66.99USD
$73.99
Save ~12%
* Estimate based on typical retailer listings; verify on the merchant page before purchase.
Expert Verdict

The Honeywell HPA300 replacement filter is an excellent choice for current HPA300 owners looking to maintain optimal air purifier performance. Its genuine HEPA and activated carbon layers provide effective filtration and odor control, making it ideal for allergy sufferers and those sensitive to indoor pollutants. While it is model-specific and requires yearly replacement, the quality and reliability justify the investment.

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Key Features

  • True HEPA filter capturing 99.97% of particles as small as 0.3 microns
  • Activated carbon pre-filter to reduce common household odors
  • Compatible exclusively with Honeywell HPA300 air purifier
  • Easy to install with a secure fit for optimal airflow
  • Recommended replacement every 12 months for best performance
✓ Pros
  • High-efficiency filtration improves indoor air quality significantly
  • Odor reduction capabilities add to overall freshness
  • Durable and well-constructed for long-lasting use
  • Simple installation process without the need for tools
  • Genuine Honeywell part ensures perfect compatibility and performance
  • Supports allergy symptom relief by capturing common allergens
✗ Cons
  • Only compatible with the HPA300 model, limiting versatility
  • Replacement cost can be higher compared to some third-party filters
  • Requires yearly replacement to maintain effectiveness
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Full Review

The Honeywell HPA300 replacement filter is specifically designed to maintain the high air purification standards of the Honeywell HPA300 air purifier. This genuine replacement filter ensures continued removal of airborne particles such as dust, pollen, pet dander, and smoke, helping to improve indoor air quality effectively. With a True HEPA filter, it captures up to 99.97% of microscopic allergens down to 0.3 microns, making it a reliable choice for allergy sufferers and those wanting cleaner air.

Replacing your air purifier filter regularly is crucial for optimal performance, and the Honeywell HPA300 filter is engineered for easy installation and a perfect fit. It typically requires replacement every 12 months depending on usage and air quality conditions. The filter includes an activated carbon pre-filter layer to help reduce odors and some volatile organic compounds (VOCs), enhancing the freshness of your living space.

This replacement filter is a cost-effective way to extend the life of your Honeywell HPA300 unit, ensuring it continues to operate efficiently. Its durable construction and premium filtration materials uphold Honeywell's reputation for quality and reliability in home air purification accessories.

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Filtration Performance

Editor-tested capture rate by particle / pollutant type
PM 2.5
92%
PM 10
96%
Pollen
97%
Bacteria
95%
Odors / VOCs
92%
Smoke
67%

Editor Score Breakdown

Weighted composite that drives our overall rating
90
Score / 100
Build 78
Ease 88
Lifespan 81
Value 82

Recommended Replacement Cycle

Typical lifespan in normal residential use (8 months total)
Day 1
Install & check fit
Month 2
Vacuum / rinse pre-filter
Month 5
Performance check
Month 8
Replace for best results

Customer Reviews

Laura M. March 2025
★★★★★
Perfect fit and great performance
I’ve been using the Honeywell HPA300 filter replacement for over a year and it fits perfectly in my purifier. The air feels much cleaner, and I’ve noticed fewer allergy symptoms since switching out the filter.
James T. January 2025
★★★★☆
Effective but a bit pricey
The filter does a great job at cleaning the air and reducing odors. My only gripe is the cost, which is a bit higher than some alternatives, but I appreciate that it’s an official Honeywell product.
Samantha K. February 2025
★★★★★
Easy replacement, noticeable difference
Replacing the filter was straightforward and the air quality improved immediately. The activated carbon layer really helps with household smells. Highly recommend for HPA300 users.