Holmes HAP424-U HEPA-Type Tower Air Purifier

by Holmes

Product Features

• Air purifier with space-saving tower design for rooms up to 180 square feet
• HEPA-type filter removes up to 99-percent of airborne particles as small as 2 microns
• Filter enhanced with baking soda to eliminate odors; filter-change indicator light
• Washable pre-filter; 3 speed settings; optional ionizer; CADR of 116 for smoke
• Measures 26-1/2 by 9-1/2 by 6-1/2 inches; 3-year limited warranty

Product Details

• Product Dimensions: 11.1 x 8.2 x 28.3 inches ; 1 ounces
• Shipping Weight: 11.4 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0000DK35C
• Item model number: HAP424-U
• Average Customer Review: 3.3 out of 5 stars  See all reviews (31 customer reviews)
• Amazon Best Sellers Rank: #23,989 in Home & Kitchen (See Top 100 in Home & Kitchen)
  • #1 in Home & Garden > Heating, Cooling & Air Quality > Air Purifiers > ULPA Air Purifiers
  • #2 in Home & Garden > Heating, Cooling & Air Quality > Air Purifiers > Electrostatic Air Purifiers
  • #4 in Home & Garden > Heating, Cooling & Air Quality > Air Purifiers > Charcoal Air Purifiers

Product Description

Amazon.com Review

Over time, any household room can get stuffy and dank, especially in the colder months, when windows stay shut for months on end. Anyone with respiratory allergies knows how that stuffiness, which is the result of an increase in airborne particles, can affect the mere act of breathing. Not to mention the odors. The Holmes Harmony Air Purifier can scrub those particles out of the air with a High Efficiency Particulate Air (HEPA) filter. Particles of dust, pollen, pet dander, mold spores, and even smoke larger than 2 microns are caught in the filters tiny screens. And there's an ionizing function that helps even smaller motes clump together, so they're big enough to get filtered out. A lungful of air scrubbed by the Harmony Air Purifier feels and smells like it's from a snowy mountaintop

The Harmony Air Purifier is designed for a 180-square-foot room, or about 12 by 15 feet. The unit is a slim oval tower of ivory plastic less than three feet tall, easy to place in an unobtrusive corner of the room. There are two control knobs--one for the three power settings, and one to turn the ionizer on or off. An indicator light lets you know when the filter needs changing.

The outside of the unit can be cleaned with a damp cloth. The air inlet grill can be washed in hot soapy water (not dishwasher-safe); it should be completely dry before being replaced into the unit. The top air outlet can be swept clean with a small, soft brush. The air purifier measures 26-1/2 by 9-1/2 by 6-1/2 inches. Holmes products include a 3-year warranty and come with detailed operating instructions. --Garland Withers

Product Description

This space-saving tower air purifier works two ways to freshen and clean the air in your home. First, its Hepa high-efficiency filter helps remove airborne particles such as smoke, dust, pollen, mold spores and pet dander. Then, to absorb and eliminate common odors, the filter is fortified with trusty arm and hammer baking soda. Features three speed settings and optional ionizer. Recommended for rooms up to 180-square-feet, smoke CADR 116. Replacement filters: HAPF30DPDQ-U.

Customer Reviews

Most Helpful Customer Reviews

47 of 48 people found the following review helpful:

4.0 out of 5 stars Definitely cleans the air, October 24, 2004

By 

S. Brand "sandra807" (United States) - See all my reviews
(VINE VOICE)    (REAL NAME)   

This review is from: Holmes HAP424-U HEPA-Type Tower Air Purifier (Kitchen)

I got this filter because I have cats and birds, and before I started using it, I always had a coating of "bird dust" on everything and was concerned about breathing it. I bought it in mid summer, and in early fall, I opened it up to see if the filters were "catching" anything, and sure enough, they were covered with a fine powdery silt, and then I realized that the bird dust that used to cover desks and other surfaces had almost disappeared since I had started using it. I was grateful to know that the machine had been doing its job. Whenever it was on, I did notice a subtle change in air quality...it seemed fresher. I have kept it running almost constantly for three months, and have not had any problems with it.

While it's working, I don't notice the sound that much, especially on the lower setting which is what I usually keep it on. It simply becomes "white noise". The higher setting is definitely louder, so if that's something that bothers a person, it should be kept in mind, but it's a humming, blowing sound, not rattling or harsh.

I can't compare it to other air purifiers because it's the only one I've ever had, but for the price, and for a person on a budget, I think it's done an amazing job. I'd like to get another for a different part of my house.

24 of 25 people found the following review helpful:

4.0 out of 5 stars Loud? yes. Works? yes., April 19, 2005

By 

PositiveLastAction (VA) - See all my reviews

This review is from: Holmes HAP424-U HEPA-Type Tower Air Purifier (Kitchen)

Ok this machine IS noisy, but certainly not annoying to any degree. Sounds like a fan, not a motor. I recently changed the filter and noticed that it had picked up a ton of airborne dirt and debri. I also feel less stuffy in the morning. So, I will happily accept the fan noise and highly recommend this unit! It's also rather inexpensive for what it can do. Overall, a sound investment.

23 of 24 people found the following review helpful:

3.0 out of 5 stars nice machine for the $$, September 1, 2005

By 

Treva L. (USA) - See all my reviews

This review is from: Holmes HAP424-U HEPA-Type Tower Air Purifier (Kitchen)

I bought this machine due to my son being diagnosed with several allergies...dust, dust mites, mold, pollens etc. It seems a bit noisy, but nothing I cant get used to, and the air seems cleaner and fresher already!! I guess that means less housework when it comes time to dust..woohoo! Also, if you read consumer reports tells you how BAD the Ionic Breeze is for you, as it creates ozone, which is a toxic emission, that may clear odor, but can poison you as well...hmmm I think I will save my $ and stick with my HEPA filter from Holmes!!