GermGuardian AC5000E Air Purifier Review

Lightweight and easy to maintain, this is perfect for those looking for an affordable HEPA filter air purifier to clean the air of medium sized spaces.


The GermGuardian AC5000E 3-in-1 TRUE-HEPA is an Air Purifier System with UV Sanitizer and Odor Reduction. The 28-Inch Tower captures 99.97% of allergens with the TRUE-HEPA filtration system including: dust mites, pet dander, and plant pollens. It has multiple levels of cleaning including the charcoal filter that reduces common odors from pets, smoking and cooking. The air purifiers UV-C light technology works with Titanium Dioxide to eliminate airborne bacteria, viruses, germs and mold spores. The UV-C Germicidal Lamp acts as the light source for the PCO filter and kills 99.9% of viruses, bacteria and mold spores. It has been proven to be especially good at removing, smoking, cooking and pet odors. The air purifier is equipped with indicator lights that automatically blink indicating it is time to replace the filter or UV-C bulb. The GermGuardian AC5000E is CADR rated 125+ and cleans 20 percent more compared to the GermGuardian model AC4825. It is Energy Star rated and comes with a 5-year limited warranty.


The blue UV light is too bright for most people to use while sleeping but it can be switched off for nighttime use. When the GermGuardian AC5000E is initially set up there is often a strong plastic smell. This normally dissipates after a short period of use. It covers only a single room of under 200 square feet, so if you’re looking to clean the air of a larger space then you should check out the large room air purifiers.

MY RECOMMENDATION / The GermGuardian AC5000E is simple and easy to set-up and use with a manual knob fan control and push button UV light option. It is best used in medium to large rooms, keeping door and windows closed for best performance. It is compact and lightweight making it easy to move from room to room and takes up very little space. The low initial purchase price of the GermGuardian AC5000E makes this unit affordable and it is Energy Star rated ensuring your usage costs will be low. This air purifier’s quiet operation allows it to be left running while you sleep. Testing has shown that the GermGuardian AC5000E significantly reduced the particles in the air giving allergy sufferers an air purifier that helps keep your air clean, healthy and free of airborne germs, viruses and bacteria. The American Academy of Pediatric Allergy and Immunology Doctors recommends TRUE-HEPA air filtration to reduce exposure to indoor asthma triggers.

What makes the GermGuardian AC5000E a good air purifier?

The GermGuardian AC5000E is great for people with chronic allergies or asthmatic conditions and those looking for a “fresh/clean” environment. It’s especially good for pet owners who are sensitive to pets’ hair and dander. If you’re looking to purify the air of a small space then this will filter out a lot of impurities in the air.

How do you use the GermGuardian AC5000E 3-in-1 True HEPA Air Purifier System?

The GermGuardian AC5000E is simple to use with a single, manual rotary dial that sets the fan speed to LOW, MED or HIGH. A separate switch to turn on the UV lamp which energizes the photocatalytic process. Filter replacement requires no tools. Turn the air purifier ON by rotating POWER KNOB clockwise. When the air purifier is ON, the power indicator will be lit (green) and the unit will be in LOW mode. To set the air purifier to MEDIUM or High mode rotate the POWER KNOB clockwise. To activate the UV-C Bulb, press the UV button. Press the button again to turn OFF the UV-C Bulb. To turn the unit OFF just turn the POWER KNOB counter-clockwise to OFF mode.

What are the replacement parts for this  Air Purifier?

The combination TRUE-HEPA filter needs to be replaced in the AC5000E, 3-in-1 Air Cleaning System every 6-8 months depending on the use of the product. When filter turns grey or black it should be replaced with a new one. Filters can be difficult to find after initial purchase so it is recommended to by additional filters at time of purchase. The replacement carbon pre-filter for the GermGuardian 5000 series should also be replaced every 6-8 months and comes in packs of 4. The GermGuardian UV-C bulb model LB5000 should be replaced every 10-12 months depending on use and requires a screwdriver to change.

How easy is it to clean ?

To clean the GermGuardian AC5000E use a clean, dry, soft cloth to wipe the external surface of the unit once a month. To clean just the Pre-filter, carefully remove it from combination filter and gently clean with the brush attachment of your vacuum cleaner. This filter should be handled carefully or it will tear. The combination TRUE-HEPA Filter should not be cleaned but replaced every 6-8 months depending on use.
When the green power light on the air cleaner will turns red and flashes continuously, it is time to replace the filter. When the filter has been replaced, press the UV control button and hold for 3 seconds to restart the system. The light will turn back to green.

To replace the filter first turn off and unplug the unit. Press the Lock & Release Button and remove the rear cover from the unit. Remove the used Combination Filter. Insert new Combination Filter into the unit checking the arrow on the filter for correct installation direction. Reattach the rear cover of the unit making sure it is securely latched into place. Push and hold UV Control Button for 3 seconds to reset and the filter has been replaced! Interested in the GermGuardian AC5000E?

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