Germ Guardian AC4825 Germ Guardian AC5250
If you are reading my comparison review of the Germ Guardian AC4825 and AC5250 air purifiers, you have probably already carried out some basic research into air purifiers and have identified these 2 machines as possible purchases.
The Germ Guardian AC4825 and AC5250 are 2 of the most popular cheap air purifiers on the market today and in this review I will try to explain in simple terms the important similarities and differences between them so that you can make a better informed decision about which of these air purifiers is most likely to be suitable for your particular circumstances.
So, what exactly are the similarities and differences between the Germ Guardian AC4825 and AC5250 air purifiers?
Germ Guardian AC4825 vs AC5250 – Shared Features
The Germ Guardian AC4825 and AC5250 air purifiers enjoy many common features. Here is an explanation of their most important shared features.
1. True-HEPA Filter
Both of these air purifiers come fitted with True-HEPA filters and official CADR ratings (see below).
In order for an air purifier to be properly categorised as a “True-HEPA” filter it must be capable of removing at least 99.97% of airborne particles that are as small as 0.3 microns.
True-HEPA filters are great first lines of defence when trying to improve the air quality in your home because they are able to remove large amounts of the general dust, pet dander, pollen, and mold spore particles found inside.
Please bear in mind that many air purifiers do NOT come with a True-HEPA filter (especially at the cheaper end of the market) and so the Germ Guardian AC4825 and AC5250 machines are rightly regarded as 2 of the best performing machines at the entry-level end of the market.
Since they are designed to trap large amounts of air particles within their structures, individual HEPA filters won’t last forever and you will need to budget for replacement filters every 6-9 months or so. Happily, buying replacement True-HEPA filters for the Germ Guardian AC4825 and AC5250 air purifiers is not a ridiculously expensive business as can be the case with some of the other brands of air purifier.
One feature of the Germ Guardian filters is that you only need to buy a single combined filter when choosing a replacement rather than lots of individual filters.
When replacing the filter, just make sure that you buy one of the genuine ones made by the Germ Guardian company rather than one made by an unauthorised 3rd party seller.
2. The 2 Other Air Filters
In addition to the True-HEPA filter, both of these air purifiers come with 2 other filters that are designed to deal with certain types of airborne particles that are not effectively removed by the True-HEPA filter.
The first extra filter on both machines is an activated carbon filter, which is designed to remove household gas and odors, including the unpleasant ones that are routinely caused by pets, cigarettes and cooking.
The second extra method of air particle removal found on both the AC4825 and AC5250 air purifiers is a UV-C Light Filter. These work with Titanium Dioxide to kill airborne bacteria, viruses, germs and mold spores.
So, despite the fact that the Germ Guardian air purifiers are at the cheaper end of the market, you get 3 different types of filter to target a wide variety of unwanted airborne particles within your home.
You also don’t worry about having to keep track of how long the filters have been in use for, or having to guess when they need to be replaced by constantly removing the filters and checking them.
Instead, the Germ Guardian AC 4825 and AC5250 machines both come with “filter replacement indicators”, which will tell you exactly when it is time to buy a replacement filter.
There is also an indicator to tell you when to replace the UV-C filter light bulbs too.
Not all air purifiers are equally safe to use in the home.
Unfortunately, some air purifiers use filtration processes that cause large amounts of potentially harmful ozone gas to be released into your home.
The risks associated with ozone gas emissions in the home are downplayed by some manufacturers of these ozone generating air purifiers. Ozone gas can, however, be seriously hazardous to your health and that of your family members. I certainly won’t allow an ozone-emitting machine anywhere near my kids and I would never recommend one of these products to you either.
In my opinion, there is absolutely no point in using one of these air purifiers to relieve the symptoms of asthma and allergies if you are simply going to replace these unwanted air particles with Ozone gas particles that might be even more damaging to your health than the ones that you were trying to remove!
Finally, there is actually no reason to worry about whether or not to buy an ozone-generating air purifier for your home or office because they aren’t considered to be particularly good at purifying the air anyway. What’s more, the combination of a True-HEPA filter, and activated carbon filter and a UV-C Light Filter is all that you really need.
So, to be clear, the Germ Guardian AC 4825 and AC5250 air purifiers are both completely “Ozone-Safe”.
Germ Guardian AC4825 vs AC5250 – Main Differences
1. Room Coverage & CADR Rating
The main difference between the Germ Guardian AC4825 and the AC5250 is that they are designed to be used in different sized rooms.
The Germ Guardian AC4825 is suitable for use in small to medium sized rooms that measure up to 155 square feet, and it comes with a CADR rating of 100+.
The Germ Guardian AC5250 is suitable for use in medium to large sized rooms that measure up to 193 square feet, and it comes with a CADR rating of 125+.
2. Number of Speed Settings & Timer
The Germ Guardian AC5250 comes with 5 different speed settings. The AC4825 model only has 3 different speed settings and is, therefore, somewhat less flexible than the AC5250 when trying to get the perfect combination of air purification efficiency and quiet performance.
The Germ Guardian AC525o also comes with an 8-hour programmable timer, whereas the AC4825 model does not.
3. Pet Pure Treatment
One of the main differences between these machines is that the True-HEPA filter that is supplied with the AC5250 model has also been treated with Germ Guardian’s “Pet Pure” antimicrobial agent. This is designed to inhibit the growth of mold, mildew and odor-causing bacteria on the surface of the filter.
So, if you have pets in your home, it will probably be worth spending the extra few dollars in order to get the benefits of this Pet Pure Treatment.
4. Size of the Air Purifier
Due to the fact that these machines are designed to work in different sized rooms and, therefore, have different air circulation requirements, there is a difference in the size of the towers.
The Germ Guardian AC4825 air purifier is 22 inches tall, whereas the AC5250 is 28 inches tall.
5. Product Warranty
The AC4825 comes with a 3-year limited warranty, but the AC5250 comes with a longer 5-year limited warranty.
Germ Guardian AC4825 vs AC5250 – Video Reviews
Here are some videos of the Germ Guardian AC4825 and the AC5250 air purifiers.
Germ Guardian AC4825 vs AC5250 – My Verdict
The Germ Guardian AC4825 and AC5250 air purifiers are 2 of the best cheap machines on the market.
They both come with high quality True-HEPA filters, an activated carbon filter, and a UV-C Light filter. They will do a very good job of removing unwanted air particles from your home or office environment without breaking the bank.
It is reassuring that neither machine will put your health at risk because they do NOT emit large amounts of ozone gas as a by-product.
The only decision that you will have to make is which one of them is most suitable for the room that you wish to purify.
For rooms up to about 155, I recommend the Germ Guardian AC4825 unless you have pets.
For rooms up to about 193 square feet and/or for those with pets, I recommend the Germ Guardian AC5250.
Leave a Comment
If you have anything to add to my Germ Guardian AC4825 vs AC5250 Comparison Review, please just leave a comment in the box below.