GermGuardian AC4825 Air Purifier Review

Quietest Bedroom Air Purifier

After conducting a ton of research, I made the decision to cherry-pick air cleaners which may be appealing to everyone. For this page, I’m going to discuss an air purifier suited for people that reside in small to medium-sized homes, and it comes in the form of the GermGuardian AC4825 3-in-1 Air Cleaner with True HEPA, UV-C and Odor Reduction. Discover below how this unit will make the air you breathe feel heavenly!

GermGuardian AC4825

Multiple Stage Air Filtration

Possessing a unique 3-Stage filtering capability, the GermGuardian AC4825 is capable of covering a wide assortment of air pollutants. I’m going to be a little technical now, so please indulge me for a moment.

[Be sure to check out our Air Purifier Buying Guide to learn what you need to know about air cleaners before you buy and see which ones we think are the Best Air Purifiers on the market before you make a buying-decision]

The initial part of the 3-in-1 system is the pre-filter which utilizes activated carbon which traps bigger particles typically found inside your home like dust, lint and hair. Activated charcoal is extremely porous, and because its surface is uneven, making it awesome for trapping bigger pollutants, but there is an additional benefit to it as well. A carbon layer efficiently gets rid of odors that are produced by household pets, tobacco smoke and cooking.

Through the course of the next stage, the air is filtered through a True HEPA filter. True HEPA filters have to meet strict guidelines that involve being able to collect nearly 100% of airborne particles as small as 0.3 microns in diameter. For example, stuff such as pet dander, dust mites, mould spores and pollen are all included in this category.

The third stage is the process of air filtration via UV-C light. You see, whenever the air gets exposed to short range UV light (UV-C) which is considered to be the germicidal UV light pathogens like rhinovirus, E.coli and streptococcus are eradicated.

Capacity and Clean Air Delivery Rate

The AC4825 is ideal for rooms that are as large as 155 square feet, making it ideal for the majority of bedrooms. The unit’s CADR (Clear Air Delivery Rate) is 100+ which effectively equates to it being able to produce 100 cubic feet of clean air per minute with 5 changes of air each hour.

Enjoy the Silence

The GermGuardian AC4825 provides 3 fan speeds: low, medium and high. When running on low, the unit is extremely quiet. Actually, the majority of people won’t be able to tell its running outside of being able to see the large blue LED, and the cleaner will not increase much in volume when the fan speed is running on medium. When running on high, the unit produces noise that is akin to white noise but for the majority of people, this power level will very seldom even be used or required.


While it’s accurate when they say that beauty is in the eye of the beholder, this unit is an absolute beauty! I believe it’s the most attractive air purifier money can buy. Sleek lines, a black casing and blue LED light combine to supply an awesome presentation! Actually, I think it can easily be confused as a part of your home entertainment system. Because there is a handle on top of the unit, weighing a little more than 10 lbs., transporting the cleaner is very easy.

Ease of Use and Maintenance

Maintenance of the AC4825 doesn’t require much of you. All you have to do is wipe it down with a soft, dry cloth to keep dust from accumulating on the vents. The filters may need to be vacuumed once every couple of weeks on average and replaced around every eight months or so, or annually depending on how much use the air purifier gets.


You can say I am biased if you want to, but this is easily the most attractive air cleaner I’ve ever conducted a review on. Together with an efficient 3-stage filtering set up, this air purifier will eliminate all pollutants floating around in the air inside your home. It’s easy to use and maintain, affordable, and quiet as well. To find out more information or to purchase one of these beauties, take a look at Amazon. You never know, Amazon could have some fantastic deals on it!