GermGuardian 4-in-1 HEPA Air Purifier for Home, Large Rooms Up to 743 Sq. Ft. with HEPA Air Filter, UV-C Light & Odor Reduction, AC4825E, 22 Tower Gray"
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Availability:
In Stock.
Arrives
Saturday, May 23
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Color: Grey
Size: 22"
Number of Items: 1
Features
- TRUE HEPA 3-LAYER PROTECTION: HEPA filter captures 99.97% of smoke, dust, pollen, and pet dander as small as 0.1 microns*, helping reduce allergy and asthma triggers for cleaner, fresher air.
- ZERO OZONE CERTIFIED: Optional UV-C light reduces airborne allergens, germs, bacteria, and mold spores** while delivering fresher air. Safe, effective, and independently verified Zero Ozone for peace of mind.
- WHOLE ROOM COVERAGE: Cleans a 153 sq. ft. room in just 12.5 minutes or up to 743 sq. ft. every hourideal for bedrooms, living rooms, and large open areas.
- QUIET OPERATION: 3 speed options with the lowest setting being utilized as gentle white noise for a quiet, restful night's sleep
- GENUINE REPLACEMENTS: Use only GermGuardian filters and bulbs for certified fit and performance. Compatible with HEPA Filter B (FLT4825, FLT4825SM, FLT4825VO, FLT4850PT), UV-C Bulb LB4000, and carbon filter FLT22CB4.
Description
GermGuardian HEPA Air Purifier for Home, Large Rooms - 743 Sq. Ft. with HEPA Air Filter, UV-C Light & Odor Reduction, AC4825E, 22" Tower, Gray Brand Story By Germ Guardian
Color: Grey
Brand: GermGuardian
Product Dimensions: 6.75"D x 10.25"W x 22"H
Power Source: Corded Electric
Item Weight: 8.55 Pounds
Power Source: Corded Electric
Control Method: Touch
Filter Type: HEPA, Carbon, UV-C
Floor Area: 743 Square Feet
Noise Level: 55 Decibels
Particle Retention Size: 0.1 Micrometer
Controller Type: Rotary Dial
Wattage: 55 watts
Contaminant Filtration Capability: True
Special Features: H13 Grade Filter, HEPA filter 99.97%, UV-C Light Traps Bacteria, Up to 743 sq. ft. coverage
Filter Class: HEPA
Item Dimensions D x W x H: 6.75"D x 10.25"W x 22"H
Item Weight: 8.55 Pounds
Specification Met: CARB Certified, ETL Certified
Brand Name: GermGuardian
Model Number: AC4825E
UPC: 895916000851
Global Trade Identification Number: 51
Manufacturer: Guardian Technologies
Warranty Description: 3 years
Part Number: AC4825E
Included Components: Tower Air Purifier, HEPA Filter, UVC Bulb, User Manual
Item Type Name: HEPA Air Purifier with UV-C
Unit Count: 1.00 Count
Color: Grey
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, May 23
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Color: Grey
Size: 22"
Number of Items: 1
My toddler and I both have severe allergies and asthma. To the point that over the past month we have both been having major issues with the pollen and smog in the air, even with being home most of the time! I ordered this one after doing A LOT of research, and I decided this was the best for the money. With a true HEPA filter that you replace once a year (opposed to once a month) it would save money in the long run. I chose this one for the den in our house and over the coming weeks we will be getting smaller ones for the bed rooms. This review for right now is 24 hours in to having it on in the house, and later I will come back and add to it. Set up was easy straight out of the box, and I put it out of traffic areas in the house. I was worried with where I put it there would be trouble for good air circulation, but it is doing great! In fact with it on high I noticed a tag on the other side of the room (directly across) was moving on one of the toys yesterday as I was cleaning. Then I cooked fish last night (our den has an open doorway to the kitchen), and I couldnt even smell it cooking!! I decided to test it this morning, and sat on the couch painting my nails. Even using nail polish remover I couldnt smell it!!! (which astounds me b/c I hate doing my nails simple b/c of the toxic fumes!!) As far as noise, its not that bad. On high, with the tv and with kids running around it is a little white noise and thats it. I sleep with the bed room doors open, and having a tower computer on in the den annoyed me, however on medium I couldn't even hear it in the den! It also moves a lot of air b/c even when the ac isnt blowing air, it feels like it is b/c of this tower! I am super excited at the thought of having better air quality in the house so we dont have as many issues, and I know it will take probably a good month for me to be able to judge that (and trust me I keep up with our flair ups b/c my son sees a specialist so I can tell you if it will make a difference or not). I also liked the UV light, since we have kids over to play all the time it makes perfect sense to have it to. Also anyone that has lung issues, make sure to avoid any purifier that has the ion part (where you turn it on for a fresh smell) it actually causes lung problems (if you have underlying problems). Oh and check out the reviews on walmart . com for this purifier, it has hundreds of reviews and most are five star (which is one of the reasons I went with this model even though not everyone loved it on here). Check back in August and I will add an update =) ****************************UPDATE****************************** 12/2/2012 Hi ALL! Sorry took me so long to come back and update =) Fortunately if you see below I did give a heads up three weeks in we still loved it. This unit is holding up well, and really does a good job! Since buying it (I guess going on six months ago now --WOW THAT WENT FAST!!) it helped with our asthma and allergies. Within the first month I stopped waking up with a stuffy nose, and it was taking particles out of the air so I wasn't seeing as much dust. I still would love to have them in each room, but that is on the back burner. Make sure you have enough for the sq footage of your room. We have since moved to a larger place, that has more sq footage in the den, and also two open doorways leading to other rooms. As such, this unit is doing really well for how much air it has availability to; when I should honestly probably should have one more in here. It isn't too loud, and I love the uv light. Within the first month of us having it we were exposed to someone (a visitor) that wound up having pneumonia. With the fact we have a higher risk of catching lung illnesses, I was really nervous. I think a big contributor to not catching it is because we had this unit running on high with the uv light. I highly recommend this unit, and I hope it helps! =) ***********************************Update 6/26/13 We just about hit the year mark! Still working great and going strong! Make sure you wipe down (inside and out) once a month (as the book says). Still going strong, and working well! =) Buy this one, and you wont regret it! ***********************************Update 11/13/13 Unit is still working great! We added a second one earlier this year, and pleased with both! =) ***********************************Update 06/29/14 Both units are still going strong with no issues. Still helping with our asthma and allergies.
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Reviewed in the United States on July 21, 2012 by Sandwiched In Between
Color: White
Size: 22"
Number of Items: 1
We've had many different air purifiers/filters, and this is by far the best we ever had. I'm sure if you pay twice as much, you might get a better one; but this does exactly what it says. Our home smells and seems cleaner, and it really can clean the air in a medium to large size room in under an hour. Very simple 3-speed dial, and a one touch physical button to turn on/off the UV light. This makes it likely to be more reliable and you don't need a Phd to work it. lol It also is designed with aesthetics in mind, it's actually kind of pretty. We haven't had to replace a UV light yet, but replacing filters is as simple as it gets, plus the first filter can be washed to save money. Not a complaint or flaw at all, but when you position it, the air does not blow straight out but at an angle. And for those concerned about noise... the low speed is very quiet, medium speed is not unpleasant, and high speed is only loud if you are near it. I bought a second one and may buy more.
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Reviewed in the United States on February 22, 2026 by MC
Color: Grey
Size: 22"
Number of Items: 1
It works very well! It cleans the air and the filters are easy to find. It was easy to set up and use. It’s quite at night on low.
Reviewed in the United States on April 25, 2026 by Amazon Customer
Color: Grey
Size: 22"
Number of Items: 1
Very nice for the price and it definitely works well my only complaint is on high you get the best air filtration but it’s also noisy. It has 3 speeds which lvl 1 is a lot quieter. Very easy to use very simple to replace filters definitely a good size tower not to big not to small. Controls are very straight forward one button for UV light and rotation switch for speeds if ever needed I’d buy again more of a large room or open area. Kinda loud for a bedroom and nursery but worth the money!
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Reviewed in the United States on March 31, 2026 by Tristan B.
Color: Grey
Size: 22"
Number of Items: 1
I've had several other air purifiers lately, including towers from Holmes and Honeywell, but this one is definitely the best. I've been using it in my bedroom for about a week now, and since then the air quality has really improved; not only am I sneezing and waking up less, it just SMELLS crisp and fresh in the room. I'll be buying another larger one for the main living areas soon. The unit comes out of the box ready to go with no assembly. The filters are already installed, and all you have to do it plug it in. It was well packaged and came with no damage. It's a bit shorter than I expected, but I am comparing it to a Holmes model that I bought at a big box retailer for around the same price. The quality difference between the two is very obvious; the GermGuardian is heavy and feels more premium than the cheap plastic that the other one is made out of. The instructions tell you how to use it and set it up and when to replace the filters - the light on it will flash when it's time to replace it, which is nice so I don't to mess around with stickers or other nonsense. The prices of the filters seem more reasonable than some of the other reviews suggested (some people bought whole house furnace filters and cut them up) and I think I'll just be buying the pre fit ones instead of trying to cut a bigger one up (yeah yeah convenience is king in this house, even over saving a few bucks). They last 6-8 months, depending on use, and there's only one to replace. One particular Hamilton Beach purifier I tried had THREE (!!!!) filters I needed to replace every one-two months or so, and the filters cost about half as much as the unit itself! I'm much happier with this set up. It picks up the cat hair and dust in the bedroom and, like I said, the air seems much more breathable. There weren't any odors in the bedroom to begin with, so I can't tell you about it's odor absorbing properties (although I've been REALLY impressed with GermGuardian's smaller odor killer unit for the cat-box room GermGuardian GG1000 Pluggable UV-C Air Sanitizer and Odor Reducer), but it HAS helped my allergies a great deal. I still use my Flonase, but now I don't wake up all night because I can't breath or I'm sneezing, and the cats being in the room don't bother me. The whole room smells FRESH. As I mentioned, I'm well enough impressed that I'll be buying another, larger, one to keep out in the main rooms. The fresh air smell is so great in the bedroom that I just want it everywhere in the house. It's like having the windows open all the time without the pollen or allergens. They already show you what the product looks like, so I've included a picture of how bright the blue UV light is at night (I turn the light off but keep the unit running), and next to an average sized cat so you can get a sense of its actual size. The advertising makes it look taller, but believe me it's not a drawback at this price, and even though it's smaller it works perfectly for a bedroom.
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Reviewed in the United States on March 18, 2016 by Amazon Customer
Color: Grey
Size: 22"
Number of Items: 1
Works great and provides white noise that helps me sleep
Reviewed in the United States on May 11, 2026 by L. Horton