Germ Guardian AC4825 Review

Air Purifier
True HEPA air filter reduces up to 99.97percentage of harmful germs, dust, pollen, pet dander, mold spores, and other allergens as small as .3 microns from the air. The UV-C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds.
Germ Guardian AC4825

Quite Operation & well priced.

  • 3 IN 1 air purifier for home.
  • True HEPA air filter.
  • Pre filter traps dust, pet hair, and other large particles.
* On special until end June 2020

Germ Guardian AC4825 Air Purifier

Mark Johnson
Mark Johnson
Last Updated:  Jun, 2020
Rated from 9184 reviews.

I think you’ll agree with me when I say:

It’s REALLY hard to choose an air purifier with all the options available!

Or is it?

Well, it turns out, that after years and hundreds of hours of testing & reviewing, we have strong opinions about what makes the best air filtration system: level of purification, efficiency, and maintenance.

The Germ Guardian AC4825 (On special until end Jun, 2020) has all the qualities and features, giving it an added advantage and an edge over its competitors.

Quick Summary of the Germ Guardian AC4825

GermGuardian air purifiers kill germs and viruses, filter odors, and trap allergens with a True HEPA filter and optional UV-C light to deliver crisp, refreshing air to your home. POWERFUL AND CUSTOMIZABLE, you’re at home comfort can be customized with 3-speed settings, ultra-quiet mode on the lowest speed setting, and an optional UV-C light on an easy to use top panel.

The Good & the Bad


  • This air purifier was rated for its ability to filter tobacco smoke, dust, and pollen from rooms.
  • 22 inch purifier filters air 4x per hour at max speed in medium to large rooms up to 167 sq. feet.
  • Pre filter traps dust, pet hair, and other large particles.


  • The air purifier is pricey, but given all its incredible features and the 99% allergen-free cleaning system, it’s worth every penny.

Key Features

  • AHAM Verified – This mark means the air cleaner's CADR has been independently tested for its ability to remove tSmoothing Solution Chloroform Halogenated salicylanilides Methylene chloride Vinyl chloride in aerosol.
  • HEPA, UV-C and Charcoal – HEPA Filter captures 99.97% of dust and allergens as small as .3 microns such as household dust, pet dander, mold spores and plant pollens.
  • Energy Star Certified & Carb Compliant – Product earned Energy Star by meeting strict energy efficiency guidelines set by the US EPA.
  • Quiet Operation – The lowest setting can be used as gentle white noise at night for a quiet and restful sleep.
  • Settings – Choose between 3 speed settings and an optional UV-C light.

Useful Product Info

  • Product Dimensions: 9 x 5.5 x 21.5 Inches
  • Product Weight: 7 Pounds
  • Product Color: Grey

Common Questions

  • Does it come with a filter?

Yes, it comes with a HEPA filter and a carbon filter that work together. These are good for about a year and 6 months respectively.

  • Is it noisy on a high speed?

It is very noisy on high speed. I have it in my dining room on the main level and can hear it at night in my bedroom on the second level. Not enough to keep me awake since it is a constant noise but it is pretty loud.

What Others Think

At the time of writing this review, there were:

  • 14345 Customers
  • Who Gave it a Rating of 4.4 Out of 5.

What's Included?

Here's what you get when you buy this Air Purifier:

  • UV-C Light
  • True HEPA filter
  • Pre-filter and charcoal filter
  • Air Purifier
  • 3 Year warranty

Our Verdict

This air purifier is an excellent option because the HEPA filter trap germs and viruses, filter odors, and allergens and optional UV C-light to deliver crisp, refreshing air to your home

What to Look for in a New Air Purifier?

If you’re in the market for a new Air Purifier, you’re probably looking at the different options and wondering which is the best one to choose.

Don’t worry, we’ve got you covered. Our reviews are based on the following features:


Only the most effective purifiers make the cut.

Noise Level

So there's more clean air and less noise.


Because you need a machine that’s built to last.

Ease of Use

It needs to be easy to use and easy to clean.


The Top Air Purifiers We've Reviewed


Our Rating: 9.2/10

IQAir Health Pro Plus​


Our Rating: 9.4/10

RabbitAir MinusA2​


Our Rating: 9.0/10

Winix 5500-2


Our Rating: 8.6/10

Honeywell 50250-S

Have you read our article on the air purifiers reviews?

Or our article on the hepa purifiers?

Mark Johnson

Mark Johnson

Mark advises business, individuals, and organizations on how to use and get the best purifiers so as to maintain their offices and homes. For a fresher and cleaner environment, he is the man for you. He loves ideas and concepts and uses his skills to make them a reality.

Scroll to Top