GermGuardian AC4825 22” 3-in-1 Full Room Air Purifier Review

Based on a report of the EPA (Environmental Protection Agency), indoor levels of pollutants may be two to five times higher compared to outdoor pollutant levels. What this implies is the value of indoor air quality can’t be taken too lightly. For numerous of us who spend most of our days indoors, it makes sense to purchase a quality air purifier that has multiple levels of cleaning the air.

GermGuardian AC4825 22” 3-in-1 Full Room Air Purifier Review

In this post, we’ll talk about some of the pros and cons of the GermGuardian AC4825, a 3-in-1 air cleaning system that is manufactured to catch allergens, eliminate airborne viruses and bacteria, and destroy mold & odors.

Introduction to the GermGuardian AC4825 3-in-1 Air Cleaning System

First, a pre-filter and a charcoal filter are combined to capture large particles like dust and lint, as well as destroying typical household odors. Subsequently, HEPA filtration captures 99.97 percent of airborne particles, as small as .3 microns in size, such as dust mites, debris, mold spores, plant pollens, and pet dander.

As reported by the American Academy of Pediatrics Allergy & Immunology, doctors recommend HEPA air filtration systems to decrease exposure to indoor asthma triggers. Last but not least, the UV-C light technology works to help eliminate airborne viruses and bacteria while Titanium Dioxide is activated by the UV-C light to decay odor molecules caused by smoking, cooking, and domestic pets.

GermGuardian AC4825 22” 3-in-1 Full Room Air Purifier

Description of the GermGuardian AC4825

The GermGuardian AC4825 will come in a nice, 7×10.2×21.5 inches box. This air purifier is manufactured to get rid of allergens from the air that it discharges. According to GermGuardian, this air cleaning system is capable of capturing 99.97% of airborne pollutants. How can such a claim be supported? Well, the unit superposes different layers of protection:

true HEPA filtration mechanism that is ideal for capturing plant pollens, spores, pet dander, and dust mites to name a couple of.
UV light is suitable for killing airborne viruses and bacteria. The AC4825 features a UV based mechanism that eliminates viruses, bacteria, and other germs. Thanks to this layers, this unit successfully eliminate rhinovirus, streptococcus, and E. coli to make the air in your room germ-free. The UV-C light destroys these disease-causing microorganisms with a smart, energy-saving mechanism.

Odor Reduction stands. Pets and routine house activities can be sources of odor. Unless you decrease this bad smell, it can make the environment in your room unpleasant. The AC4825 is manufactured to decrease bad smell from your room to make a fresh environment. This system utilizes a carbon filter to get rid of odor and smoke particles from your room.

Features and Specs of the GermGuardian AC4825

– 22-inch plastic Tower
– UV-C light
– Measures 7β€³ x 10β€³ x 22β€³.
– 3-year limited warranty
– Clears up to 99.7% of dust.
– Clears allergens as small as .3 microns.
– Recommended for small-medium sized rooms
– Eliminates airborne mold.
– Fights household odors such as nail polish, pets, cooking and smoking

Look and feel

I have to say that I quite love the design, modern and serious. Until now, I didn’t come across an air purifier that is of the level of the Germguardian’s design. Needless to say, it has to execute what it is made for, but in my opinion, design is additionally important because you do not want an air purifier that will spoil your interior design. Additionally to that, the AC4825 has a very useful new feature that numerous other air purifiers do not have, it is the Indicator Lights for Filter and UV-C Bulb replacement so that you do not have to remember the last time you changed your filter to keep the purifier running at optimum levels.

Talking about convenience, the Germguardian AC4825 is very silent when you put it on low-level speed fan and a bit loud when on high-level speed fan. If there is one thing that is missing it’s a remote control.

GermGuardian AC4825 Filter

The Germ Guardian AC4825 comes with an activated charcoal pre-filter which is a thin layer of activated charcoal. This pre-filter is connected to the HEPA filter. Both of these are put in the front of the UV-C light.

The 2 filters are combined into one filter pack and come together. They’re changed about every 8 months to one year and done at the same time. The changing expense is approximate $30.


There is not something to learn about how to use the GermGuardian 8425. Once you put it on you do not have to touch another button. The only thing you have to care about is the dust that accumulates on top of the air purifier, mostly when it’s switched off. A good dry cloth is sufficient enough to do all the cleaning, while you may either change the filters or vacuum them occasionally based on how frequently you use the GermGuardian.

Will the GermGuardian AC4825 clean my home?
The GermGuardian AC4825 air purifier is perfect for a 155 square foot room – basically, a small to medium sized area. This air purification product is perfect for a smaller bedroom or a small office. This air purifier should be used in a room where the area can be simply cut off (and all house windows and doors shut). This air cleaner is good at eliminating irritants, pet dander, mold spores, dust mites, pollutants, and regular domestic odors such as kitchen odors, smoke, and pet smells. The use of a UV-C light feature is convenient, due to the fact it eliminates germs in the air.

Based on the reviews, the AC4825 is great to eradicating the odors, specifically those from pets and the kitchen. More heavy smells, like odors from candles and incense, take a little longer to get rid of, but they’re eliminated if given enough time.

a couple of consumers talked about noticing a smell after switching the unit on for the first time, but the vast majority said that the smell disappeared after a couple of days. The presumption is that this odor is simply from the new plastic, housing the filters – most new items have that “new product” smell and it’s nothing to worry about.

Suitable Applications

The GermGuardian AC4825 has a variety of different technologies, allowing it to be an outstanding machine for the affordable price. The gain this air purifier has over other less costly units is the HEPA filter, which makes it an ideal air purifier for potential buyers who have never owned an air purifier before. For consumers living in neighborhoods with poor air quality or high amounts of dust and pollen, this air purifier is additionally an ideal alternative.

Nevertheless, if you’re seeking a device especially for smoke or VOCs you may want to look somewhere else. This machine does provide an activated carbon filter but it doesn’t contain enough carbon to be effective against large amounts of smoke and VOCs.


Very effective. The GermGuardian removes most of the contaminants in the air. Its 3-in-1 filter design makes it possible for the purifier to get rid of particles, germs, and odor from the air.

Quiet functioning. Even though the GermGuardian AC4825 produces some noise, it’s tolerable and not disturbing. You can comfortably sleep with this device running in your bedroom if you set it to low operation.


Unsuitable for large rooms. ThisGermGuardian is ideal for small rooms and office spaces only. The air cleaning effectiveness is lower when the air purifier is placed in relatively large rooms.

Plastic smell. A good fraction of users has noted that the device produces an unpleasant “plastic” smell. Such users feel that an air purifier manufactured to clean and freshen air should not be producing any smell. It’s additionally possible that some users didn’t get rid of the plastic around the filters when they first opened the box.

Multiple Stage Air Filtration

With its distinctive 3-Stage filtering ability, the GermGuardian AC4825 can cover a wide range of air pollutants. We’re going to get technical now, so bear with me.

The very first part of the 3-in-1 air purifier is the pre-filter which uses activated carbon to trap bigger particles found indoors such as dust, lint, and hair. Activated charcoal is very porous, and its uneven surface is great for trapping larger pollutants, but there is another gain to carbon as well. A carbon layer successfully removes odors stemming from household pets and cooking.

During the second stage, the air is filtered through a HEPA filtration system. True HEPA filters have to meet strict criteria which involve being able to collect close to 100% of airborne particles as tiny as 0.3 microns in diameter. For example, pet dander, dust mites, mold spores and pollen all fall into this group.

The third stage involves air filtration using UV-C light. Essentially, when the air is exposed to short range UV light (UV-C) which is regarded as to be the germicidal UV light pathogens such as rhinovirus, E.coli and streptococcus are killed.


The GermGuardian AC4825, 3-in-1 Air Cleaning System has all the glitz and glamor of a specialized quality air purifying system. The device comes with a pre-filter, a charcoal filter and a True HEPA filter that cleans the air of dust particles, dust mites, pollen and even particulates produced by wood burning fireplaces.

Regardless of the criticisms that have been leveled at this air purifier, it seems that the vast majority of the users have been satisfied with their buy. As outlined by them, this ENERGY STAR qualified device works so well at cleaning the air, some have stated that they can tell the difference in the air quality after a number of hours of use. Other people found out that it quite helps control odors from pets and cooking. Obviously, it makes the air so much easier to breathe. Other prominent features of the GermGuardian AC4825 include its modern design and that it functions quietly on the low fan setting.

The GermGuardian air purifier will not entirely meet everybody’s needs. But if you’re in the market for a true HEPA air purifier that works well for small rooms for under 100 dollars, subsequently based on the customer feedback you’ll be pleased with this air purifier.

We hope you liked the CGermGuardian AC4825 Review. For our top 5 pick in air purifiers we recommend reading our “Top 5 air purifiers 2017” article.


If the air in your house is continuously causing you sneezing and difficulties in breathing, it’s like that it is filled with allergens and bacteria that can pose a risk to your wellbeing. To solve the issue, you’ll need an air purifier that will manage to remove all the impurities from the air and allow you to breathe easily.

An example that could enhance the way you breathe is the GermGuardian AC4825, 3-in-1 Air Cleaning System with True HEPA filter, a high-quality air purifier designed to handle most of the impurities that travel through the air. For a reasonable price around 90 dollars, you can sit back knowing that you and your family will breathe clean and fresh air at home with the help of this efficient air purifier.

The 3-stage running in the GermGuardian AC4825 air purifier allow it to remove each and every impurity in the air, such as bad odors, germs, mites, and allergens. For that reason, the advantages on your wellbeing will be numerous and if you add to that the stunning design and the ease of use, you have an air purifier that can outcome many other units.

The GermGuardian AC4825 3-in-1 Air Cleaning System with True HEPA filter is a 3-stage air purifier that uses 3 different technologies to ensure maximized air filtration. The first stage is the carbon filter that gets rid of typical household odors caused by pets, cooking or smoking, meaning you can use it in any room of the house, even in the kitchen. The second stage is the True HEPA filter, which is the top type of filter that can remove up to 99.97% of all the impurities existing in the air.

This type of filter is capable of the smallest particles as small as 3 microns in size so that even the tiniest mites get trapped inside the air purifier. Being able to catch dust mites, pet dander, mold spores, and pollen makes a good difference in the quality of the air and turns out to be very useful in easing asthma symptoms. The third technology is the UV-C light that eliminates airborne germs and bacteria that can pose a risk to your wellbeing, particularly who suffer from respiratory diseases. The UV-C light captures and destroys the DNA of a wide range of viruses such as rhinovirus, E.coli, and streptococcus, leaving the air totally clean and sanitized.

This complex running makes the GermGuardian AC4825 3-in-1 Air Cleaning System with True HEPA filter one of the most efficient air purifiers that can fight plenty of health threats. Besides its high effectiveness, this air purifier is also energy-efficient, as it meets the standards set by the US EPA, which proves that using this air purifier will reduce your energy costs. Furthermore, the GermGuardian AC 4825 is also a CADR rated 100+ unit that has been tested and measured based on a ratio between its consumption and the CADR for dust, and it has successfully passed all tests.

You could not ask for a gorgeous design in an air purifier, so if you’re searching for a unit that you won’t have to cover away, this is the perfect choice to enhance your family room or bedroom. The stylish shape matches the most modern of interior designs, with a matte black housing and sleek stainless steel insertions. The LED light at the top is what really makes it stand out and you’ll love how small and easy to carry it is, with only 22 inches in height, 10′ in thickness and weighing 10 pounds. The On/Off button and the fan adjustments are conveniently placed on top of the unit, so it is simple to manage it from standing.

The LED on top of the GermGuardian AC4825, 3-in-1 Air Cleaning System is not merely a design hack meant to make it look good, but it also provides as a reminder for when it’s time to replace the filter or the UV-C bulb. If this LED starts blinking the first time to switch the air purifier on, you simply have to hold the UV button for a few seconds and the system will reset. Then the air purifier is ready to start working at its best.

The GermGuardian AC4825 uses a fan that can be installed to 3 speeds, namely low, medium, and high, which not merely determines its power but also the noise level. The first two speeds are so silent that you can’t even tell whether or not the device is working, and the high speed barely gives off a low noise, but this speed will hardly ever be needed. The top-notch technologies and materials used in manufacturing this air purifier guarantee its maximum functioning and the 3-year product warranty will solve any issue with the unit withing the first 3 years of use.


Why is the red and/or blue light blinking when I first turned on the air purifier and how do I turn it off?
The air purifier is equipped with signal lights that automatically flash when it is time to change the filter or UV-C bulb. If the indication lights are flashing the first time you turned on your air purifier, simply just reset the GermGuardian AC4825 by holding the UV-button for at least 3 to five seconds until the indication lights stop blinking. Your air purifier is now set and good to go!

Do I need to replace my filter?
Yes. It’s recommended that you change the Filter (FILTER B/FLT4825) every six to nine months based on the usage of the air purifier.

How long is the warranty?
The warranty is 3-Year. For more detailed warranty information please refer to the warranty section of your GermGuardian AC4825 instruction manual.

What is CADR?
CADR stands for “Clean Air Delivery Rate”, which shows the volume of filtered air provided by an air purifier. CADR ranks show the efficiency of the air purifier at capturing fine particles from harmful elements like tobacco smoke and plant pollens from the room.

How do I know when I should change the filter?
It’s advised that you change the Combination Filter every six months β€” based on use β€” to keep a maximum level of air purification. When the filter indicator turns from white to dark gray or black, the filter should be changed with a new filter. If the filter is still white, it doesn’t need to be changed. You can purchase GermGuardian AC4825 filters on Amazon here.

What is UV-C light?
UV-C is a component of the ultra-violet light spectrum that is filtered out by the planet’s atmosphere. The β€œC” stands for the specific frequency of UV-light that eliminates germs and bacteria.

Why is UV-C light so effective?
UV-C light is very good at penetrating thin-walled germs like viruses and bacteria. The light modifies the genetic structure of the germ, and they’ll eventually die.

Germ Guardian AC4825 and AC5000 Air Purifiers with UV-C Technology

Transcript of the Video
Dirty air swirling around your home, lingering odors, allergy issues, airborne germs, and bacteria. You do not want that. What you do want is the GermGuardian 3-in-1 true HEPA air cleaning system. It effectively guards against scores of problems caused by allergens, pollutants, germs and bacteria trapped in your home. Especially when your windows are closed.

So why the GermGuardian true HEPA air cleaning system? it’s a powerful 3-in-1 system that uses several purification methods to take dirty air in and send clean air out. 3-in-1 means:

– A carbon layered pre-filter
– A fine particle true HEPA filter
– UVC technology

After being twice filtered, the air passes through UVC light which actually kills airborne germs, bacteria, mold spores and even viruses. It’s safe, no chemicals, and the killing power is contained within the unit. It’s the same ultraviolet technology that hospitals use to help sanitize. We know you’ll love this smooth and quiet operation and with its rich space saving design this GermGuardian air cleaning system won’t compromise the beauty of your home.

Now a quick walk around the tower, at 22 inches tall it’s perfect for small to medium sized rooms. And there’s a 28 inch model for larger areas. Here’s your power control. This controls the speed, will clean and purify up to 155 square feet or 195 square feet every hour depending on the model. A pre-filter with carbon layer captures dust, lint, pet hair and even odors. The true HEPA filter captures 99.97 percent of dust mites, mold spores, pollen and other small airborne particles down to 0.3 microns in size to dramatically reduce room pollution. Titanium dioxide provides a second method of odor removal. And when it’s time for a new filter, one combination filter conveniently replaces all filters at once. Yes, a GermGuardian true HEPA 3-in-1 air cleaning system does more than filter the air or purify the air, it guards you and your family by cleaning the indoor air that you breathe every second of every day.

Purify & Cleanse Your Home’s Air

Did you know..

– 55% OF AMERICANS have a known allergy.
– One in five have allergy or asthma symptoms
– 4 million workdays are Lost a Year due to hay-fever.
– 50% of Illnesses are caused or aggravated by poor indoor air quality.

Indoor air quality is one of the EPA’s top five environmental risks to public health, and 87% of American homeowners are unaware that pollution is worse in their homes than outdoors. In order to avoid sickness, it is crucial that we breathe purified, clean air. Spending time outdoors in fresh air is one solution, but is not always a logical one when the majority of our day is spent indoors.

Enphiropure Air Purifier

The Enphiropure Air Purifier is the most effective solution to provide clean, fresh hospital-grade purified air in your entire home. The Enphiropure Air Purifier is installed directly into your HVAC duct, dispersing oxidants that kill pollutants and allergens in the air throughout your entire living space. The Enphiropure’s electro magnetic energy cell creates ionized hydro- peroxides. It sends these ionized advanced oxidizers throughout your entire home to destroy pollutants, particulates, microbes, gasses and odors in the air and on surfaces before they have a chance to reach your family.

Lab test shows that the Enphiropure kills off up to 99% of harmful bacteria, yeast, allergens, viruses mold, both in the air and on surfaces. Independent lab tests also showed that the Enphiropure reduces microbial on food surfaces by up to 99%. It also reduces E. Coli, Listeria, Strep, MRSA, Avian Flu and Norwalk Virus by up to 99%. It also helps to eliminate up to 85% OF toxic gasses and noxious smells. The Enphiropure uses zero chemicals. It is also EPA, FDA and USDA approved. In fact, it was used by the Chinese Government recently to help prevent the spread of the Avian Flu. Basically, the Enphiropure takes out the ^ bad stuff from your air, leaving only the good stuff.

Enphiropure Air Purifier

When the unit turns on it produces ionized hydrogen peroxide molecules, which are distributed to every cubic foot of air in your entire home. Every time an ionized hydrogen peroxide comes into contact with bacteria, viruses, mold spores, VOCs and odors it quickly breaks down and destroys the air quality contaminate on the spot. The system also passes a charge off to all the dust, dander, pollen and particulates in the air, which causes them to stick together. That increase in size will make your existing filter equipment more efficient in capturing these particles. It is literally purifying every cubic foot of air in your home at the same time.


Do Air Purifiers Help with Allergies?

The home should be an oasis of peace and health. However, often the air quality in our homes is compromised. An air purifier can help make any room cleaner and more pleasant to be in. It can also do wonders for someone suffering from allergies or breathing. Yet achieving air purity is not a simple task. Cleaning the air in older homes seems like a never-ending chore β€” and even new homes can have air quality problems. With so many different air purifiers out there, how does the average consumer choose which one to buy? We have put together some important information every consumer should know when purchasing an air purifier. | Do Air Purifiers Help with Allergies?

First, determine the reason you are purchasing an air purifier. Do you need one for odor and gas control? Could it be allergens? Or are you purchasing one to help with the virus? This can be crucial when choosing an air purifier. If you are in search of an air purifier that aids in odor and gas control you will need one that first removes the particulates in a pre-filter, and then has the odor and gasses removed by the gas filter. Gas molecules are so small that even the finest HEPA filter can’t remove them. If you are looking for an air purifier to assist in eliminating allergens, you should choose one that will remove large particulates such as pollen, with a pre-filter, but also remove smaller allergens. Smaller allergens include mold, bacteria, animal dander, fumes, etc.

An air purifier can do wonders for someone suffering from allergies or breathing problems. But did you know there are ways to get even more benefits from an air purifier? Proper usage, placement, and understand of how they work is purifier? Proper usage, placement, and understand of how they work is necessary in order to get the most out of even the most basic models of portable air purifiers.

Cleaner Air around You

Air purifiers make for excellent additions to any home or office, regardless of whether or not you suffer from allergies In recent years air purifiers have gotten smaller in size and price, making them practical purchases for just about anyone. Whether you are trying to fight troublesome asthma or allergies or just want peace of mind knowing the air around you is clean and pure, a small air purifier can provide great benefits. There are some things to consider when using an air purifier to ensure you get the most benefits out of it.

Air Purifier Fan Speed

Most modem air purifiers will come with a variable fan speed, similar to regular room fans. Unlike standard fans, there is more than meets the eye to these different fan speed settings. An air purifier is not just blowing air into and around the room. Rather, the fan speed of a purifier also controls how quickly air in the room is taken in and cleaned. A well-made air purifier cleans the air as it passes through the appliance, with no slowdown in the air speed moving through. That means the higher the purifier fan speed, the quicker the room is cleaned of particles and allergens.

Of course, these higher settings have drawbacks. They use more energy, made the purifier louder, and oftentimes will clean the airless efficiently than lower speeds That is because if too much air is rushing into the unit too quickly, it makes sense that the cleaning mechanism will reach a point where it simply cannot fully clean it fast enough without slowing down. This makes higher purifier speeds only recommended when large numbers of people are in the room. Otherwise, keep the fan on low. It may take longer to see the frill effects but you will pay less in electric bills and be getting a better result from the purifier.

Quick tips on Air Purifiers

The majority of people buy air purifiers to help with their allergy symptoms and asthma. What’s great about air purifiers is that they also improve the quality of air in your home and commercially. 2 main things to ask when buying a purifier is to always remember that each air purifier is made to improve certain issues so take your time and pick the right one for you. What pollutants are in your home? Based on this, you can choose which specific type to buy. How much coverage area would you want? Based on this, you can choose how large or compact you want the purifier to be.


GermGuardian AC4300 vs AC4825 vs AC5300B vs AC5350B: Air Purifier Comparison

5 Recommended Air Purifiers
Best of the
Multiple Functions Budget Pick
(< $100)
Portable Also
Alen BreatheSmart Classic Large Room Air Purifier - HEPA Filter for Allergies & Dust - 1100 sqft - Graphite Dyson Pure Hot + Cool Link HP02 Wi-Fi Enabled Air Purifier,White/Silver LEVOIT Air Purifier for Home Smokers Allergies and Pets Hair, True HEPA Filter, Quiet in Bedroom, Filtration System Cleaner Eliminators, Odor Smoke Dust Mold, Night Light, 2-Year Warranty, LV-H132 AirTamer A310 |Personal Rechargeable and Portable Air Purifier | Negative Ion Generator | Purifies Air Eliminating Germs, Dust, Viruses, Bacteria, Allergens, Mold, Odors, and More | White Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode in White
Alen Dyson Levoit AirTamer Coway
Classic HP02 LV-H132 A310 AP-1512HH
1100 SqFt 300 SqFt 130 SqFt - 360 SqFt
10 x 17.8 x 26.8 in 8.7 x 6 x 24.9 in 8.5 x 8.5 x 14.5 in 3.5 x 0.8 x 1.8 in 9.6 x 16.8 x 18.3 in
21 pounds 8.62 pounds 6.5 pounds 1.76 ounces 12.79 pounds

Air Purifier Banner
Best Air Purifiers Buying Guide
Best HEPA Air Purifiers
Best Air Purifier for Allergies
Best Air Purifiers for Mold
Best Air Purifiers for Smoke
Best Air Purifier for Bacteria
Best Charcoal Air Purifiers
Best Air Purifiers for Dust

Related Guides
Best Air Ionizers
Best Air Purifiers for the Baby
Best Air Purifiers for Pet Owners
Best Travel-Size Air Purifiers