[PICTURE: it may look like a pointless dark photo, but it shows how dim the On/UV lights are in the dark. Taken from above, front-angle.]
Have had various air cleaners ranging from small wall outlet units to several brands/styles of tower designs. This is the biggest and fanciest unit we've had. It can move serious amounts of air, or run very quietly -- we do the latter and bought it since usually large fans can move more air with less noise and better sound tones. Indeed, this is the quietest filter fan we have on low speed (it's right behind us while watching TV and I feel no need to "OCD" turn it off / never notice it) and has no weird tones to it like many of the small-fan tower designs have/develop. The air sucks in all around the nice looking front so you can set it against a wall or corner and have the "correct" side facing into the room. Air vents out the top so it sorta radiates and blends into circulation rather than blowing at you or your stuff.
The controls are responsive and easy to understand at a glance, makes a pointless but soft/pleasant noise when buttons are pressed, and my favorite part is you can turn off most of the lights using an included light button. At minimum, you have a single light indicating the unit is running, and a 2nd identical light if the UV bulb is on; both are small, dim, and indirect, not casting a blue spotlight on the ceiling like a lot of cheap consumer devices. I'd probably still tape them if sleeping but most people will probably find them very livable in a bedroom. If not used in a dark space or if you want a (blue... not great for eyes in the dark) night light, it also has an attractive "ring" light that bleeds through a translucent portion of the front plastic -- looks well designed/integrated, premium.
The silver/white gloss finish is attractive and unlike the vast sea of shiny black plastic products, does not show fingerprints / dust at all. Does not develop an ugly "micro-scratch" texture either. All of which is to say... It doesn't just look nice the first 5 seconds before you smudge and scratch it getting it out of the box, but still looks brand new after months of use.
The filter inside is about 2/3 the size of our AC air intake (a lot of filter...) and has a pre-filter you can vacuum off to extend the life of the expensive main filter. The filter fits snugly. I don't notice much gook collecting around its seams where air leaks by -- a problem on other units we've had. After 4 months running 24/7, the UV light hasn't burned out and the main filter looks good beneath the pre-filter which gets cleaned about every 2 months. Looking at the filter now, we'll probably get a full year out of it or more. I've had towers with finicky UV lights that burn out often and will report back if that ever becomes the case with this unit.
The unit is set up next to the condo of a pair of small furry pets, in a house with renovations going all the time... so it has plenty to be extracting and is doing a great job so far. Smells and dust around it are noticeably better. As with all products like this, you may want to research the "ozone" output from the UV light and decide if that's good or bad for where you're placing the unit.
Overall, this is my favorite air filter/UV cleaner we have had over the years. Quiet/pleasant, nice looking/looks last, well built, and can move serious amounts of air when you want it to. Though it's wider and surprisingly thick compared to tower designs, it's a much more efficient use of space / more cleaning for the volume than the tower designs -- if you can budget it and physically fit it.
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From the manufacturer
GermGuardian AC5900 Air Purifier
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Clean AF (Air Filtration)HEPA PURE is our advanced, unrivalled, multilayer filtration technology that works together to help capture 99.97% of mold, bacteria, VOCs, and airborne viruses down to 0.1 micron in size, ensuring a PURE clean for your home. |
Turbo Charge your RefreshSanitizing UV-C Light reduces germs, viruses and bacteria and before releasing the cleaner, fresher air back into the room. Helps reduce the .03% of microbes HEPA filters leave behind. |
Sleek Design for Spaces Small and LargeStanding 21 inches tall, it is powerful enough for use in large spaces up to 1,760 sq. feet but slim enough to be discreetly positioned out of your way. |
Breathe EasyFrom the Living Room to the Kitchen, Bedroom to the Mudroom, an Air of Confidence allows you to breathe a deep, clean sigh of satisfaction. |
Zero Ozone Certified
All Guardian Technologies Air Purifiers with UV-C are tested and Zero Ozone Certified by Intertek Sustainability.
Ozone is typically produced at wavelengths below 240nm. Guardian UV-C lights use a special quartz glass that filers out these ozone wavelengths.
UV-C offers a chemical-free approach to disinfection and sanitization.
Engineered and Designed in Ohio, USA
At Guardian Technologies, our products undergo rigorous scientific testing performed by respected, independent labs in the United States and overseas. Guardian Technologies exceeds the most stringent industry standards to provide cleaner indoor air.
Since 2005, our team has embarked on a mission to revolutionize the air purifier industry through the creation and construction of top-notch air quality products .
- ETL Listed
- Energy Star Certified
- CARB Compliant
- RoHS Compliant
- Zero Ozone Certified
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| GermGuardian FLT5900 HEPA GENUINE Replacement Filter for Air Purifiers | GermGuardian FLT21CB4 Carbon Replacement Filters for AC5900WCA, 4-Pack | GermGuardian LB4000 GENUINE Replacement Bulb for Air Purifiers | |
| Customer Reviews |
973
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11
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3,216
|
| Price | $68.85 | $22.95 | $29.99 |
| Model | FLT5900 | FLT21CB4 | LB4000 |
| Primary Filter Type | HEPA - True | HEPA - True | UV-C |
| Filter Description | HEPA Pure Filter Removes 99.97% of particles down to 0.1 microns such as dust and allergens. | The carbon filter attacks smoke, cooking and pet odors along with harmful VOC's. It helps to lengthen the life of your HEPA filter. | 5 Watt bulb with the power of UV-C. UV-C light helps reduce airborne bacteria, viruses, mold spores. |
Compare with similar items
This Item  GermGuardian Air Purifier with HEPA 13 Filter, Removes 99.97% of Pollutants, Large Room up to 1760 Sq. Foot Room in 1 Hr, UV-C Light Helps Reduce Germs, Zero Ozone Verified, 21", White, AC5900WCA |  |  |  |  |  | |
| Price | -41% $177.19 List: $299.99 | $119.99 | $106.18 | $80.30 | $138.11 | $249.99 |
| Price Per Unit | $177.19 / Count | — | — | $80.30 / Count | — | — |
| Delivery | Get it as soon as Wednesday, May 1 | Get it as soon as Wednesday, May 1 | Get it as soon as Wednesday, May 1 | Get it as soon as Wednesday, May 1 | Get it as soon as Wednesday, May 1 | Get it as soon as Wednesday, May 1 |
| Customer Ratings | ||||||
| Sleep mode | ||||||
| Noise level | ||||||
| Sold By | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
| filter type | Charcoal Filter, HEPA Filer | HEPA | HEPA | HEPA, Carbon, UV-c | HEPA | HEPA |
| floor area | 1760 square feet | 750 square feet | 1040 square feet | 66 square feet | 298 square feet | 395 square feet |
| control method | touch | touch | touch | touch | touch | touch |
| power source | Corded Electric | Corded Electric | Corded Electric | Corded Electric | Ac/dc | ac |
| particle retention size | 0.1 micron | 0.1 micron | 0.1 micron | 0.3 micrometer | 0.3 micrometer | 0.3 micron |
| noise level | 53 decibels | 60 decibels | 24 decibels | 55 decibels | 192 decibels | 60 decibels |
| specification met | — | ETL Certified, CARB Certified | CARB Certified, ETL Certified | CARB Certified | Energy Star Certified | Energy Star Certified |
| weight | 13 pounds | 8.2 pounds | 9 pounds | 5.16 pounds | 9 pounds | 18 pounds |
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Customer Review: Just what I needed for my allergies!
laurie white
Reviews with images
Got pets? This thing works
We have four different size/ brand air filters in our house. This one pulls in alllllll the pet hair and dander. It’s so gross and so effective!
Top reviews from the United States
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Reviewed in the United States on March 28, 2019
[PICTURE: it may look like a pointless dark photo, but it shows how dim the On/UV lights are in the dark. Taken from above, front-angle.]
Have had various air cleaners ranging from small wall outlet units to several brands/styles of tower designs. This is the biggest and fanciest unit we've had. It can move serious amounts of air, or run very quietly -- we do the latter and bought it since usually large fans can move more air with less noise and better sound tones. Indeed, this is the quietest filter fan we have on low speed (it's right behind us while watching TV and I feel no need to "OCD" turn it off / never notice it) and has no weird tones to it like many of the small-fan tower designs have/develop. The air sucks in all around the nice looking front so you can set it against a wall or corner and have the "correct" side facing into the room. Air vents out the top so it sorta radiates and blends into circulation rather than blowing at you or your stuff.
The controls are responsive and easy to understand at a glance, makes a pointless but soft/pleasant noise when buttons are pressed, and my favorite part is you can turn off most of the lights using an included light button. At minimum, you have a single light indicating the unit is running, and a 2nd identical light if the UV bulb is on; both are small, dim, and indirect, not casting a blue spotlight on the ceiling like a lot of cheap consumer devices. I'd probably still tape them if sleeping but most people will probably find them very livable in a bedroom. If not used in a dark space or if you want a (blue... not great for eyes in the dark) night light, it also has an attractive "ring" light that bleeds through a translucent portion of the front plastic -- looks well designed/integrated, premium.
The silver/white gloss finish is attractive and unlike the vast sea of shiny black plastic products, does not show fingerprints / dust at all. Does not develop an ugly "micro-scratch" texture either. All of which is to say... It doesn't just look nice the first 5 seconds before you smudge and scratch it getting it out of the box, but still looks brand new after months of use.
The filter inside is about 2/3 the size of our AC air intake (a lot of filter...) and has a pre-filter you can vacuum off to extend the life of the expensive main filter. The filter fits snugly. I don't notice much gook collecting around its seams where air leaks by -- a problem on other units we've had. After 4 months running 24/7, the UV light hasn't burned out and the main filter looks good beneath the pre-filter which gets cleaned about every 2 months. Looking at the filter now, we'll probably get a full year out of it or more. I've had towers with finicky UV lights that burn out often and will report back if that ever becomes the case with this unit.
The unit is set up next to the condo of a pair of small furry pets, in a house with renovations going all the time... so it has plenty to be extracting and is doing a great job so far. Smells and dust around it are noticeably better. As with all products like this, you may want to research the "ozone" output from the UV light and decide if that's good or bad for where you're placing the unit.
Overall, this is my favorite air filter/UV cleaner we have had over the years. Quiet/pleasant, nice looking/looks last, well built, and can move serious amounts of air when you want it to. Though it's wider and surprisingly thick compared to tower designs, it's a much more efficient use of space / more cleaning for the volume than the tower designs -- if you can budget it and physically fit it.
Have had various air cleaners ranging from small wall outlet units to several brands/styles of tower designs. This is the biggest and fanciest unit we've had. It can move serious amounts of air, or run very quietly -- we do the latter and bought it since usually large fans can move more air with less noise and better sound tones. Indeed, this is the quietest filter fan we have on low speed (it's right behind us while watching TV and I feel no need to "OCD" turn it off / never notice it) and has no weird tones to it like many of the small-fan tower designs have/develop. The air sucks in all around the nice looking front so you can set it against a wall or corner and have the "correct" side facing into the room. Air vents out the top so it sorta radiates and blends into circulation rather than blowing at you or your stuff.
The controls are responsive and easy to understand at a glance, makes a pointless but soft/pleasant noise when buttons are pressed, and my favorite part is you can turn off most of the lights using an included light button. At minimum, you have a single light indicating the unit is running, and a 2nd identical light if the UV bulb is on; both are small, dim, and indirect, not casting a blue spotlight on the ceiling like a lot of cheap consumer devices. I'd probably still tape them if sleeping but most people will probably find them very livable in a bedroom. If not used in a dark space or if you want a (blue... not great for eyes in the dark) night light, it also has an attractive "ring" light that bleeds through a translucent portion of the front plastic -- looks well designed/integrated, premium.
The silver/white gloss finish is attractive and unlike the vast sea of shiny black plastic products, does not show fingerprints / dust at all. Does not develop an ugly "micro-scratch" texture either. All of which is to say... It doesn't just look nice the first 5 seconds before you smudge and scratch it getting it out of the box, but still looks brand new after months of use.
The filter inside is about 2/3 the size of our AC air intake (a lot of filter...) and has a pre-filter you can vacuum off to extend the life of the expensive main filter. The filter fits snugly. I don't notice much gook collecting around its seams where air leaks by -- a problem on other units we've had. After 4 months running 24/7, the UV light hasn't burned out and the main filter looks good beneath the pre-filter which gets cleaned about every 2 months. Looking at the filter now, we'll probably get a full year out of it or more. I've had towers with finicky UV lights that burn out often and will report back if that ever becomes the case with this unit.
The unit is set up next to the condo of a pair of small furry pets, in a house with renovations going all the time... so it has plenty to be extracting and is doing a great job so far. Smells and dust around it are noticeably better. As with all products like this, you may want to research the "ozone" output from the UV light and decide if that's good or bad for where you're placing the unit.
Overall, this is my favorite air filter/UV cleaner we have had over the years. Quiet/pleasant, nice looking/looks last, well built, and can move serious amounts of air when you want it to. Though it's wider and surprisingly thick compared to tower designs, it's a much more efficient use of space / more cleaning for the volume than the tower designs -- if you can budget it and physically fit it.
Images in this review
Reviewed in the United States on March 8, 2024
Reviewed in the United States on March 6, 2020
