Air Genius 4 Air Purifier


The Honeywell Air Genius 4 Air Purifier features 4 levels of cleaning power and a patented ifD® advanced filtration system that provides exceptional air cleaning performance for large rooms of 250 square feet.

- Patented ifD® high performance filters help capture up to 99.9% of the following microscopic airborne particles: dust, pollen, pet dander, dust mite debris and smoke1
- Permanent washable ifD® filter and foam pre-filter for easy maintenance2
- Independently tested and AHAM Verifide to circulate and filter room air up to 4.8x per hour in a 250 sq. ft room3
- Helps reduce odors and VOCs1

1 From the air that passes through the filter, 0.3 microns and larger
2 The ifD® particle filter and foam pre-filter can be washed to clean, permanent claim based on washing 4 times per year for 5 years.
3 Based on 3rd party independent CADR testing for the smoke CADR value when operated at the highest level. Air circulation depends on many factors, such as room size and configuration. There is no guarantee that all of the air in a room will pass through the filter.
The ifD® Trademark is used by KAZ USA, Inc. under license from Darwin Technology International LTD.

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Product Details

  • Details & Dimensions

    The patented ifD® technology uses electrical power to help capture up to 99.9% of the following microscopic airborne particles: dust, pollen, pet dander, dust mite debris and smoke.1 As air exits the purifier, molecules are charged to create ions which attach to these particles floating in the room. Those particles get pulled back into the air purifier and pass into the electrically charged ifD® filter that is permanent and washable, saving you time and money on replacement filters. With over 25 years of air cleaning expertise, Honeywell air purifiers are designed with your clean air comfort in mind.

    SKU: HFD310
    Room Size: Large
    Dimensions: 9.92" x 26.8" 
    In the Box: 1 Permanent washable ifD® filter and foam pre-filter, and 1 odor and VOC reducing K pre-filter 

    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.


  • FAQs

    Question: What is the difference between a HEPA and an ifD filter?

    Answer: HEPA and ifD filters use different mechanisms to filter out microscopic airborne particles.

    HEPA: Uses mechanical filtration in which particles are pulled through and trapped in a HEPA filter that is certified to capture up to 99.97% of the following microscopic airborne allergens and particles: dust, pollen, pet dander, dust mite debris and smoke¹ . The pre-filters and HEPA filters are replaceable.

    ifD: Uses electronic filtration in which particles are attracted to and captured by the permanent ifD filters. ifD units can capture up to 99.9% of the following microscopic airborne particles: dust, pollen, pet dander, dust mite debris and smoke. The main filter is permanent and washable, but some units also work with a pre-filter to capture larger airborne particles and reduce VOC and odors.

    Question: How do I reset the filter light?

    Answer: After you change your filter, the “Check Filter or “Check Pre-Filter” light will remain on until it is reset. With the unit powered on, press the lighted button, and hold for approximately 2 seconds until the light turns off. The electronic filter check is now reset.

    For additional FAQ or post-purchase support, please visit our support page.

  • Warranty

    5 Year Limited Warranty

    What You’ll Need to Register Your Air Purifier:

    1. Model number of the product you purchased
    2. An email address. We will use this to send you confirmation of your registration
    3. The purchase date of your product

What You Need to Know About Your New Air Purifier

If you would like fresher, cleaner air in your home, we have an air purifier for you.

Permanent Washable Filters
Permanent Washable Filters
Wash and reuse the filters for easy maintenance
4 Air Cleaning Levels
4 Air Cleaning Levels
Choose from one of the 4 cleaning levels: quiet clean, high, general clean and turbo
Filter Change Reminders
Filter Change Reminders
Filter replacement reminder light tells you when it's time to change your filter
Auto Shut-off Timer
Auto Shut-off Timer
Set your air purifier to run for 2, 4, or 8 hours
For a customized comfortable environment
Accent Light
Accent Light
Dimmer option for the control panel lights

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