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GermGuardian AC4825, 3-in-1 Air Cleaning System


Best air cleaning system



Pros

Reasonable CADR ratings

Energy efficient

Affordable –  above for only $95 makes for a sweet deal


Cons

Coverage Area, Covers 155 square feet

Air Changes Per Hour (ACH Rating)

Clean Air Delivery Rate (CADR Rating)



AC4825 3-in-1 Air Cleaning System with True HEPA, UV-C Sanitizer and Odor Reduction, 22-Inch Tower by GermGuardian®

 

Features & Benefits

 

True HEPA Filter

 

Captures 99.97% of airborne allergens such as household dust, pet dander, mold spores and plant pollens. HEPA filter captures particles as small as .3 microns in size.

 

- UV-C Technology

- UV-C light works to kill airborne germs and bacteria.

- Removes Odor

- Reduces common household odors from: pets, cooking and smoking.

 

Doctor Recommended

 

Doctors recommend HEPA air filtration systems to reduce exposure to indoor asthma triggers*.

 

Product Specifications

 

- Weight: 7lbs.

- Dimensions: 5.5 x 9 x 21.5

- Cord Length: 6'

- Construction: Plastic

 

Breathe easy with this Germ Guardian air purifier that features a HEPA filter to help remove irritants such as dust, pet dander and more. The charcoal filter helps capture household odors and a UV-C light works to kill airborne germs and bacteria.

 

Germ Guardian, with a background in UV air sterilizers, has introduced their first entries in the true-HEPA air purifier market, the 3-in-1 AC4000 and AC5000 series.

 

This review will focus on AC4825 and AC5000, inexpensive tower-style air cleaners from Germ Guardian.

 

The new Germ Guardians were picked up by big box retail: Walmart, Target, Best Buy, and Bed Bath all featured the line when first introduced. Here is a good illustration of a common big box air cleaner problem. Try finding replacement filters for the Germ Guardians at any of the boxies now that the initial sales burst has subsided.

 

I am recommending that a second set of filters accompany almost every air cleaner purchase (established premium brands excepted). A surprising number of user reviews mention buying extra filters with their AC4825s, congrats to smarter buyers. AC4000 series are 22 inches tall. AC5000 series are 28 inches tall, with a bigger filter and more powerful ultraviolet (UV) lamp.

 

AC4825 are Low-CADR, for Small Rooms

 

Guardian has not published airflow rates in cubic feet per minute (CFM) for AC4825. There is no entry in the current AHAM Verifide Clean Air Delivery Rate (CADR) listing. Germguardian cites the AC4825s as having a "CADR rating of over 100." This is pretty weak, I warn buyers of less-than-150-CADR air cleaners to install in one square foot per dust CADR maximum room size. Many dissatisfied users are those who have set up these Germ Guardians in hugely inappropriate room sizes.

 

The AC4825 manual claims it can clean 155 sq. ft., too large a space. Because the GermGuardians have extra power (photocatalytic oxidizer) I allow 1.2 feet/CADR. So I like AC4825 for a maximum of 125 square feet, a smallish room.

 

AC4825 and AC5000 Filter Trains

 

Prefilter

 

Both three-in-ones use a "combination filter" that incorporates 2 layers. However this is just a velcro-attached charcoal pre-filter attached to the front of the HEPA filter. The pre-filter is removable, so you could wash it, but the User Manual recommends simply vacuuming off the front surface with a soft vacuum brush once a month.

 

Some users report fragility of the charcoal filter, suggesting the stress of washes may do more harm than good. The carbon weight of this charcoal prefilter can only be a few ounces, with a few more in the Pet Pure Filter. So the numerous reviewers who mention effective odor removal must be using the UV/photocat effectively

 

Weights & Dimensions

  • Overall: 21.5" H x 5.5" W x 9.25" D
  • Cord Length: 72"
  • Overall Product Weight: 8.82lbs

Features

Product Type: Air purifier Finish: Dark Grey

Primary Material: Plastic

  • Primary Material Details: ABS
Number of Items Included: 1
Odor Resistant: Yes Rust Resistant: Yes
Wheels Included: No

Filter Required: Yes

  • Filter Included: Yes
  • Number of Filters Included: 1
  • Filter Life: 9 Months
  • Filter Type: HEPA
  • Filter Indicator: No
Tank/Bucket Included: No Power Source: Plug-in
Batteries Required: No Control Type: Manual
Remote Control: No Timer: No
Number of Fan Speeds: 3 Portable: Yes
Room Size: 174 Square Feet Wattage: 55 Watts (W)
Commercial Use: Yes Country of Manufacture: China

Assembly

Assembly Required: No Installation Required: No
Additional Parts Required: No  

Specifications

Energy Star Compliant: Yes ETL Listed: Yes
cETL Certified: Yes  

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