Germ Guardian AC5000 True HEPA Air Purifier Review

Germ Guardian AC5000 True HEPA Air Purifier

The Germ Guardian AC5000 Introduction

The Germ Guardian AC5000 3 in 1 True HEPA air purifier with UV Sanitizer and odor reduction is one of the best sellers. This air purifier costs around $120 to $150. The Germ Guardian AC5000 is recommended for rooms up to 190 square feet (18m).

Design, size, placementGerm Guardian AC5000 True HEPA Air Purifier

The Germ Guardian AC5000 looks similar as it’s smaller model best seller AC4825. The AC5000 is also slim and sleek, it is a bit higher than a smaller brother. The height is 28 inches (71cm). Best place for this air purifier is a floor, it very well fits in a corner. Because of the air inlet and outlet, leave space (at least 1 foot) between the wall and air purifier.

 An air purifier is a very light weight, only 10.55 lbs (4.8kg). So you can easily move it from space to space. Carrying handle makes it easier.




28 in./71cm


7 in./18cm


10.25 in./26cm


10.55 lbs./4.8kg

 Type, How it works and what sources of indoor pollution destroy

Germ Guardian AC5000 True HEPA Air Purifier

This air purifier works with a fan – dirty air is sucking through filters.

Pre-filter captures large particles and low household odors. The True HEPA captures 99.97% of airborne allergens down to 0.3 microns in size. So it means dust mites, mold spores, pollen, pet dander. UV-C light works to kill airborne germs and bacteria.

And this air purifier works very well, you will feel changes in the air in 10 minutes. The air feels noticeably fresher.


  • The control panel is easily accessible, it is on the top of air purifier.
  • The control panel is very simple – UV-C bulb button and power knob which switches air purifier on low, medium and high mode.
  • Carrying handle helps you easily move it from space to space
  • Energy star certified – 40% more efficient than standard models
  • 5 years warranty

Noise level

The Germ Guardian AC500 is quiet only on low setting. The medium is also good but too loud during the night. The highest speed is quite loud. Not the loudest air purifier which uses a fan.


  • Dust Rating: 139 CADR
  • Smoke Rating: 125 CADR
  • Pollen Rating: 149 CADR

Germ Guardian AC5000 is recommended for rooms up to 193 square feet.

Let’s say regular ceiling height is 8 feet. 193×8=1544 cubic feet.

Next, just calculate how much time it takes to cover all room.

  • To remove dust: 1544/139 = 11 minutes
  • To remove smoke: 1544/125 = 12 minutes
  • To remove pollen: 1544/149 = 10 minutes

The air purifier cleans all room air 6 times per hour. Good result.

Maintenance and upkeep

You will have to change filters every 6 to 9 months. That’s individual. There is no filter change indicator so you will have to look at the filter. If the filter is white, it is ok. If the filter is dark gray or black, you should replace it. To elongate filters life, you can clean lint and dirt from filters regularly. Pre-filter and HEPA filter comes together and costs approximately $30. So that would be $60 in a year. <Check filters price >

Filters change is simply. Remove the back filter cover, pop out the used filter, and install a fresh one.

The UV-C Bulb should be replaced every 10 – 12 months depending on use. It costs around $30. See here

On the high setting, Germ Guardian AC5000 consume 58W plus 5W bulb. Together 63W wattage. That is less than your PC or TV. A little bit more than a fridge.


Very good air purifier, great price/performance ratio. It costs between $120 and $150, delivers clean air in 10-12 minutes (if use in recommended size room), saves space, light weight, easy control panel. Ideal for allergy and asthma sufferers, and low household odors elimination.

See Germ Guardian AC5000 Reviews


  • Unit price and easy maintenance
  • UV-C technology
  • Performance – you will feel results in 10 minutes
  • Slim design that saves space
  • Don’t need the table, you can put it on the floor


  • The UV indicator is way too bright
  • The plastic smell when using it the first time. I recommend to turn it on highest speed with the UV-C light turned on for 48 hours.




Manufacturer-Suggested Room Size (sq. ft.)

193 sq. ft. / 18m2

Recommended For

Allergies, Asthma, General Air Quality,
Odor & Chemical, Smoke


28 in. / 71cm


7 in. / 18cm


10.25 in. / 26cm


10.55 lbs. / 4.8kg

Filtration System

Carbon Filter, Photocatalyst, and charcoal filter

Germ Treatment, Ultraviolet light

HEPA Filter, True medical-grade HEPA


HEPA Filter Type

True medical-grade HEPA

Amount of carbon

Photocatalyst and charcoal filter

Type of Germ Treatment

Ultraviolet light

Number of Filters to Change



8 months

HEPA Filter

8 months

Carbon Filter

8 months

CADR: Pollen Score


CADR: Dust Score


CADR: Smoke Score


Number of Fan Speeds




Filter Change Indicator

Programmable Timer

Remote Control




Maximum Wattage

58 W


110-120 V

Energy Star

Ozone Emission


Click here to see how GermGuardian AC5000 looks compared to its competitors. 

Other useful resources

Visit our blog for other air purifier reviews!

Read our full air purifiers buying guide here.

See Indoorbreathing air purifier comparison charts. (Air purifiers by concern, by type, and by price and coverage area).

Posted in Air Purifier Reviews, Reviews.

My name is Ryan. I have had a hard time dealing with my allergies. Happily, I found that an air purifier was effective to ease my allergy symptoms. I spent a lot of time researching the best air purifier. I know how hard it can be to find the suitable one.

During the reading period, I also read a lot about humidifiers and dehumidifiers. I learned the mechanisms behind the technologies as well as the manufacturers and organizations within the industry.

I now feel convinced that I have built a guide that shows you all you need to know about air purifiers, humidifiers, and dehumidifiers. So I came up with the idea of creating this website.

Leave a Reply