GermGuardian AC4825 Vs AC4300 – Which One Really Improves Breathing?

germguardian ac4825 vs ac4300

With a lot of air pollution in this day and age, you can never be too sure about how clean and safe the air we are breathing in is. This is why air purifiers are the modern-day solutions for cleaning and purifying the atmosphere we live in.

This article will review two air purifiers, the GermGuardian AC4825 vs AC4300, manufactured by Guardian Technologies. These two come with usability options and features designed to suit the needs of your home, office, or apartment.

Guardian technologies, the GermGuardian AC4825 and AC4300, come from their parent company’s extensive family of air purifiers.

Quick Comparison Table of Coway GermGuardian AC4825 Vs AC4300


Runner Up



GermGuardian AC4825

GermGuardian AC4300

Coverage Area

167 Ft2

153 Ft2

Filteration System

3 Stage

3 Stage


Pre-filter, True HEPA filter, Activated carbon filter

Pre-filter with Pet Pure, True HEPA filter, Activated carbon filter

Filter Life

6 Months

6 Months

UV-C light



Power Consumption

53 W (Max)

52 W (Max)

Noise Level

40-55 dBA

40-55 dBA

Wifi Connectivity



Filter Replacement Indicator






Air flow Capacity

130 Ft3/mint (Max)

130 Ft3/mint (Max)

Building Material



Fan Speeds



AHAM Verified



Ideal For

Small Bedrooms

Allergy Sufferers


10.2x6.7x21.5 Inches

8.8x6.3x22 Inches


8.55 Pounds

9.45 pounds


3 Year

3 Year

GermGuardian AC4825 vs AC4300

The major difference between GermGuardian AC4825 vs AC4300 is that AC4825 has a more room coverage of 167 Sq.ft than AC4300, which has 153 Sq.ft. Although AC4300 has a more attractive design, the building material of both air purifiers is plastic.

Key Differences: GermGuardian AC4825 vs AC4300

What are the main differences and similarities between the GermGuardian AC4825 and AC4300? Let’s explore their unique features and why you should buy any of the two air purifiers for your indoor air cleaning experience.

feature differences of germguardian ac4825 and ac4300

Airflow Capacity

The Airflow capacity is one of the most significant features of a purifier. A higher Airflow ensures faster purification. Undoubtedly, AC4825 has the upper hand in this regard. It comes with a capacity of 130 Cubic feet of air.

On the other hand, its popular competitor pulls inside 120 cubic feet of air. We agree that it’s an insignificant difference, but it may come in handy for people that take extra care of their health.

Room Coverage

More extensive coverage is best suitable for medium to larger rooms! Especially if you have an enormous bedroom, you should definitely choose something with better coverage. Unfortunately, the AC4300 falls behind, with 153 square feet of room coverage.

Yup, you guessed it right! Our all-rounder AC4825 has won yet again. It has superior coverage compared to its competition. We measured 167 square feet of coverage area in this device, which is not a bad figure if you ask us.

Clean Air Delivery Rate

Most people don’t have a clue about CADR. What is CADR? In simple words, the higher the CADR, the quicker a purifier filters air. It is the particles that have been removed from the air.

Our AC4825 Air Purifier has the highest CADR is, measured at 125 for pollens. In contrast, a CADR of 116 for pollen is found in AC4300.


Surprisingly, we laughed when we saw the price difference between GermGuardian Ac4825 vs Ac4300! However, most of the features of these devices are similar.

They’re both available at an affordable price. The AC4300 comes at a higher price range, even though the AC4825 air purifier provides better features.

Similarities: Are they flooded with identical features?

germguardian air purifiers similarities

Ultra-Violet Bulb

The GermGuardian AC4825 and AC4300 both feature an Ultra-Violet bulb inbuilt at the back of the air purifier, whose main aim is to produce UV-C light for killing germs. Remember, while it filters out the germs, the AC4300 also kills them.

UV-C light helps kill airborne viruses, including influenza, staph, and rhinovirus. It also uses Titanium Dioxide to reduce volatile organic compounds.

The HEPA Filter

The GermGuardian AC4825 and AC4300 have an inbuilt True-HEPA filter, aiming to purify the air by doing away with tiny and microscopic particles, which may not be visible to the eye. The HEPA filter has a fine mesh through which air passes, and any external pollen, dust mites, or pet dander are removed.

It can remove up to 99% of air pollutants and airborne allergens measuring 0.3 microns in size. Furthermore, the indicator light at the top of both air purifiers flashes whenever the HEPA filter needs replacing.

Carbon Filter

Behind the HEPA filter lies an activated carbon filter for both the GermGuardian AC4825 and AC4300. Carbon filter purifies air by removing chemical vapors like cigarette smoke, mold odors, gasses, and odor-causing bacteria.

No Wireless Connectivity

The GermGuardian AC4825 vs AC4300 are both manually controlled and don’t have special features. They do not have wireless connectivity like some other high-end air purifiers. 

Multiple Fan Speeds

The GermGuardian AC4825 and AC4300 allow for switching between their various fan speeds. They both allow for 3 fan speeds.

Manual Controls On the Device

The GermGuardian AC4825 and AC4300 are tower air purifiers and both have buttons that can be found on the air purifier control panel. You can use these buttons to specify the settings you want for your device.

Pros and Cons: How does GermGuardain AC4825 vs AC4300 compare?

Pros & Cons of GermGuardian AC4825 

  • A True HEPA Filter
  • Energy Star certified
  • Low Cost of Filter Replacement
  • Really Worth the Money
  • Some Complains of Plastic Smell
  • UV light is likely Ineffective

Pros & Cons of GermGuardian AC4300

  • Recommended for Allergy and Asthma sufferers
  • Quiet and Efficient Unit
  • A True HEPA Filter Worth the Money
  • Low-quality gas filtration
  • Less Room Coverage

Frequently Asked Questions

Does the GermGuardian AC4300 UV-C light emit ozone?

GermGuardian AC4300 is certified by CARB. It means that it produces no harmful gases like ozone or nitrogen oxides. So, the UV-C light of AC4300 is safe for humans and pets.

Can the filters be cleaned or washed?

Pre-carbon filters need to be vacuumed regularly to prevent dirt and dust from entering the system. Carbon filters can be washed or cleaned, but they cannot be replaced.

Does GermGuardian AC4825 emit ozone?

Ozone is produced during the process of disinfection. Ozone is a natural component of our atmosphere. The amount of ozone generated depends on the concentration of germs present in the air.

Is the GermGuardian AC4825 as effective as other models?

Yes, it is. It is an effective air purifier. It is highly recommended for allergy and asthma patients.

Conclusion: Don’t let your money go down the drain!

Dust-free air is a lifesaver for those suffering from allergies and Asthma. The real question is, which one is value for money when comparing GermGuardian Ac4825 vs Ac4300?

The answer is pretty simple: GermGuardian 4825. It is budget-friendly. Not forgetting, it has a higher maximum airflow capacity too.

Also, there is more significant room coverage per square foot. Finally, it is lighter and therefore more portable when compared to its counterpart.

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