GermGuardian AC5000 Air Purifier: Trusted Review & Specs

GermGuardian AC5000 has now been superseded by the GermGuardian AC5250PT for the same classic design but with latest GermGuardian’s technology.

Let’s recall the original shape of the modern GermGuardian AC5300B, because whatever inside these two air purifiers are mostly the same. Together with us, we will check GermGuardian AC5000 Review – one air purifier remains the classic design language from Guardian Technologies brand.

GermGuardian AC5000 ranks C+ in our air purifier ranking list

The flagships of this brand are the GermGuardian AC9400W and GermGuardian AC9200WCA. But if you are looking for a Smart air purifier, you should search for either the GermGuardian CDAP5500BCA or GermGuardian CDAP4500BCA.

In Breathe Quality, we have reviewed all air purifiers under these sections. Also, we guarantee that:

  • We do give honest reviews (both pros and cons) so anyone will guarantee to have the wisest choices.
  • We do not (and never) exaggerate one product just to let you click the links and buy that product blindly.


germguardian ac5000 review

  • Good performance for the money
  • Good value
  • 5-year warranty

  • Quite noisy at highest setting
  • No Smart feature

Guardian Technologies is the brand with insanely short air purifier refresh cycle with so many devices years after years. With little to no difference, it is really difficult for us – the customer to choose from the variety of options for a GermGuardian air purifier. We will do everything to give you a true GermGuardian AC5000 Review to identify this air purifiers among many nearly-the-same-performance devices of this brand.

Other GermGuardian’s Air Purifier Reviews:

GermGuardian AC5000 Price

As the first one in GermGuardian’s 28-inch family, clearly GermGuardian AC5000 will hold the lowest cost. Within a same performance, you can purchase this air purifier as an alternative to a $10 more GermGuardian AC5300B, for the price tag of $119. The price is exactly the same with GermGuardian AC4300BPTCA – a smaller 22-inch device.

There is a feeling of familiarity about the GermGuardian AC5000. Not to mention a whole bunch of air purifiers that share the same design with this air purifier, this style makes me feel like the classic PureGuardian AP2200CA and PureGuardian AP2800CA, which also belong to the Guardian Technologies.

Another nice addition, especially on something many would consider a ‘budget’ device, this air purifier is now using the latest air filter from the manufacturer, which increases its value more. For $10 more than the Levoit LV-H132 or Hunter HP100, you are able to deal with bacteria and viruses with the UV-C light in this air purifier.

But, don’t rush to buy it. You can find a deal off to this air purifier if you follow our link below, so the price is only $109.

Top GermGuardian AC5000 deals right now

GermGuardian AC5000E 28-Inch Tower Air Purifier with HEPA Filter, UVC Sanitizer and Odor Reduction.

A 20% deal OFF for limited time to any new owners of this classic GermGuardian air purifier.

Related post: Best air purifier 2022.

GermGuardian AC5000 Design and Size

As the first design for GermGuardian Tower air purifiers family, GermGuardian AC5000 has the same concept with the previous PureGuardian of Guardian Technologies company. That being said, you will have a 28-inch tower with a huge air output grill from the front and an also big intake grill from the back. With the classic air flow from back to front (which hasn’t changed since the first air purifier of this brand), this design can easily maximize the power of GermGuardian AC5000’s fan.

There’s not much at the top of this air purifier, with only one UV-light button, one on/off button, one fan speed switch and a LED filter replacement indicator.

germguardian ac5000 review

Source: Amazon

GermGuardian AC5000 weighs only 10.5 lbs – the same weight with other 28-inch tower air purifier in GermGuardian family.

Related post: Best air purifiers for bedroom.

GermGuardian AC5000 Filters

To decide the power of an air purifier, basically we will look at how many filters it has and the air filter types are used. With a 3-in-1 air cleaning system, GermGuardian AC5000 is able to defend against any types of allergens and bacteria.

  1. Pre-filter – A common GermGuardian pre-filter with Activated Carbon filter to remove the large particles of pollutants and reduce odors created from smoke, cooking, and pets.
  2. True HEPA filter – GermGuardian AC5000 uses a True HEPA Filter to capture 99.97% of microscopic allergens, dust and mold spores down to 0.3 microns in size.
  3. UV-C Light – This air purifier is also using an UV bulb to kill airborne bacteria, viruses and mold spores.

Installing a same set of filter as GermGuardian AC5300B, the fact that this air purifier is $10 cheaper will make it easy to sell to practical people. After testing all of the GermGuardian air purifiers, we can assure that GermGuardian AC5000’s performance rating is not inferior to its brothers. With an addition of an UV-C light bulb, the 3-in-1 air cleaning system from GermGuardian is one of the best technologies to deal with the tiny particles of contaminants.

germguardian ac5000 review

That is, like the AC5300B, GermGuardian AC5000 has the same efficiency of 99.9% for trapping any particles as small as 0.3 microns. The test conditions are 100 square feet room and duration of 1 hour. This efficiency is even higher than the Honeywell HFD280B (with 90%), which is $10 more when buying.

germguardian ac5000 review

Source: Amazon

Remember that you can use the same filter in an AC5000 like AC5250PT, AC5300B or even CDAP5500BCA. That means you don’t need to pay an extra of $70 to use the best air filter of Guardian Technologies. It should also be noted that today Guardian Technologies has two layers of True HEPA filter for different purpose. The last but not least, you need to change the air filter every 6-8 months base on 24/7 use.

Related post: Best air purifiers for allergies.

GermGuardian AC5000 Room Coverage

GermGuardian AC5000 stays the low-medium room coverage of 180 square feet.

The ACH of GermGuardian AC5000 is 4X. The rating of air changes per hour is similar in all tower air purifiers of this brand.

The CADR of GermGuardian AC5000 is 123 Dust/ 116 Smoke/ 128 Pollen (cfm). This air purifier’s CADR rating is a little bit higher than the $200 CDAP5500BCA of Guardian Technologies. With this CADR rating and high ACH, we can rest assured that GermGuardian AC5000E is effective in cleaning a room area of 180 square feet.

Related post: Best large room air purifiers.

GermGuardian AC5000 Sound

As the classic version of AC5300B, GermGuardian AC5000 is running with 3 fan speeds. Despite of the advertisement of ultra quiet at lowest setting, we can’t avoid the noticeable sound when using GermGuardian AC5000 at full fan speed.

Even on lowest speed, the GermGuardian AC5000 produces a noise level of 40 decibels, and it is higher than most of the normal air purifiers in the market. For example, the AeraMax 300 is only 35 decibels, the SilverOnyx can be as low as 25 decibels, or Winix 5300-2 with only 28 decibels.

Just like any other tower devices in GermGuardian’s family, GermGuardian AC5000 is not a perfect option for quiet places, such as your office or bedroom.

Related post: Best air purifiers for baby.

GermGuardian AC5000 Power Consumption

A good air purifier must be used for a long time to be efficient, and one of the most asked questions in Breathe Quality is: “Do air purifiers use a lot of energy?”. We can all agree that power consumption is one important criteria to review if this air purifier is worth your money or not.

Using the old 8 watts UV-C bulb, GermGuardian AC5000 consumes as much energy as the GermGuardian CDAP5500BCA. We recorded the power consumption of 57 watts, which is really high for a low fan speed air purifier like GermGuardian AC5000.

For using a GermGuardian AC5000 8 hours per day, it would cost you up to $20 per year. Still, this GermGuardian AC5000 is an Energy Star air purifier, that means you don’t need to worry about the energy cost to run this air purifier.

Related post: Best air purifiers for pets.

GermGuardian AC5000 Additional Features

As the classic air purifier of this brand, GermGuardian AC5000 has nothing but a LED indicator for filter replacement. But what could you expect from this old device of Guardian Technologies in 2018? Remember that even the modern-design version of AC5000 – the AC5300B also doesn’t have any other additional features.

If you are looking for smart features, you need to aim for the CDAP5500BCA.

Related posts:

1, Best air purifiers for smoke.

2, Best air purifiers for dust.

3, Best air purifiers for mold.

GermGuardian AC5000 Customer Service

There is not much to say about the brilliant support from Guardian Technologies’s customer service. The American brand is providing a very active support for anyone contacting them. They also put the Instruction Manuals online to help you solve the common questions by yourself. But if you can’t find a solution, just contact the customer service via phone at 866-603-5900 or via email at Just like any other brands, they will be available for you from Monday to Friday.

They have occasional Free Shipping policy, as well as a great discount on all products (most popular 10% to 20%). Whenever you find their air purifiers not as great as you previously thought, you can return them within 30 days of your original receipt of the order. And don’t worry about the warranty policy of Guardian Technologies, as they warrant their products to be free of defects in materials or workmanship. You can register for a warranty in up to 5 years.

Top GermGuardian AC5000 deals right now

GermGuardian AC5000E 28-Inch Tower Air Purifier with HEPA Filter, UVC Sanitizer and Odor Reduction.

A 20% deal OFF for limited time to any new owners of this classic GermGuardian air purifier.

Our verdict

This GermGuardian AC5000 is a decent air purifier in low-range market. With a built-in 3-in-1 air cleaning system, this air purifier can do a lot for a 180 square feet. But running without any additional features back up, it is still difficult choice to go all-in for this air purifier.

  • Performance
  • Features
  • Annual Cost
  • Design
  • Price


GermGuardian was once a symbol, but at the moment it lacks too many good additional features.