Customer Reviews For The Honeywell Allergen Plus HEPA Air Purifier - Black, HPA5100B

Overall Rating

4.9
9 Reviews
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9 customers recommend this product

Product Reviews

Jeffry S
May 11, 2026
Verified Purchase
So far, so good

As with the several Honeywell we have, all work well and do the job.

Katelyn A
September 16, 2025
Verified Purchase
Quiet and efficient

Quiet and functional, easy estup

Alex N
March 17, 2022
Verified Purchase
We Turn It On at Bedtime

Prevents waking up congested and provides pleasant white noise for aiding sleep.

Patricia A
December 24, 2021
Verified Purchase
Customer Review

quiet, thorough and uses filters that I use with other Honeywell products that are available online and in stores.

Paulina S
June 4, 2021
Verified Purchase
GREAT

Do a great job

Marie Schwalbe
January 30, 2021
Verified Purchase Helpful
Quiet

I have never had an air purifier before, so I cannot compare to other models. But, this one is quiet enough that I can sleep with it on. I also have a very quiet air conditioner in my room, and that is louder. The device it fairly attractive and unobtrusive. I love the colorful symbols that light up to identify which mode it is on. They are large and easy to see. You can also turn off these lights, so they aren't annoying. Would recommend.

SONG-PING DAI
January 18, 2021
Verified Purchase
Customer Review

just what we wanted

Roanne Pitluk
December 29, 2020
Verified Purchase
InSight HEPA Air Purifier HPA5100B

This air purifier is so quiet you hardly know its there. We are sleeping and breathing better with pure air. I liked it so much I bought one for my mother who suffers with allergies.

EricaF
September 27, 2020
Verified Purchase
Really Good Purifier

This is our third Honeywell purifier. We live by the forest fires and this purifier was an absolute must -- kept the air clear in the house and is not too loud!

Callie Patterson
September 15, 2020
Verified Purchase
Air purifier 5100B

This is great. I have two in my bedroom. Really does the job. Thanks Honeywell great service, great products.

Product FAQs

What Are Honeywell Allergen Plus Air Purifiers?

These home air purifiers have been engineered to capture up to 99.97% of the following microscopic airborne allergens and particles: dust, pollen, pet dander, dust mite debris and smoke. These portable air purifiers use an easy to read VOC sensor that displays the surrounding air quality level. They also implement a custom filtration process via enhanced odor filters, effectively turning them into pet air purifiers, smoke air purifiers and air purifiers for allergies.

How often do I need to change the filters on the Honeywell HPA5100?

The Honeywell HPA5100 comes with a pre-filter and a HEPA filter. The pre-filter should be replaced every 1-3 months, and the HEPA filter should be replaced every 6-12 months. InSight Air Purifiers can also use enhanced filters that should be replaced every 3 months.

My Air Purifier is starting to make noise and the air output is less. What's wrong?

The filters may be dirty. High amounts of contaminants can block the pores in the filter and stop the air from moving through it. Replace the Filters. The HEPA Filters should be replaced every year and the Pre-Filter and Enhanced Odor and VOC Filters should be replaced every 3 months. Please note these are guidelines only and filters should be checked periodically as individual home conditions may vary. To ensure the unit is performing properly, replace with Certified Genuine Honeywell Filters.

How long should I run my Air Purifier?

In general, the unit will be most effective when doors and windows are closed. It is recommended that you run your air purifier while you are at home to help clean the air. If desired or conditions warrant, you may run your air purifier 24 hours a day

Can I wash any of the filters in my Air Purifier?

No. Washing the filters in your air purifier will ruin them.

What are VOCs?

Volatile Organic Compounds (VOCs) are emitted from various solids and liquids such as paints, cleaning supplies, building materials, and permanent markers. Some of these compounds can have adverse short and long term health effects and consistently have higher concentrations indoors than outside.

Do Honeywell Air Purifiers Emit Ozone?

No, Honeywell HEPA Air Purifiers use HEPA Filtration that does not release ozone into the surrounding area.

Is this a good air purifier for smoke?

The Honeywell InSight Series HEPA Air Purifier is effective at removing smoke particles from the air. It captures up to 99.97% of microscopic allergens and particles, including smoke. It is also rated CADR 114 for smoke by the AHAM which means it can clean a room of 190 square feet 4.8 times per hour.

HPA5100B Video Guide

Watch this helpful video to learn more about the Honeywell Allergen Plus HEPA Air Purifier - Black, HPA5100B.

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