Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: what is the difference between the "Pet Pure" and germ guardian AC5000?
Document: It did take me 2 days to really feel the difference. I think due to the weather changed a few times before this arrived which is when my allergies are at its worst.I have this on my side table in the bedroom and have it blowing in my face. It is quite big but I do better with it blowing in my direction.I bought this after reading reviews of the other Germ Guardian air cleaners, but this one has 5 speeds instead of 3.
So this air cleaner has a lot it has to deal with. It is rated for upto 193 sqft.I am vacuuming the filter once a month to hopefully make the filter last longer (got this idea from a review of one of the other Germ Guardian air cleaners). The manual says the filter will last 6-8 months.Right now I am searching for an air cleaner for the living room.
I go this as a second heap filer, one for the bedroom. I brought a different product first for the living room, with said it was for pet owners. It cost more then this one, but this one is just as good.
The fan is a bit noisy at higher levels  but fine at medium to lower levels. I can tell the difference in the air quality with the unit. I love it.
We move this air cleaner from room-to-room and can actually detect the air is lighter and smells cleaner after running it. A home or office shut tight needs a purifier like this to take care of the air quality. We also enjoy the white noise when the fan is on low. The Guardian is easy to operate and easy to use...don't want to be without it.
It just had to take its' course and somehow go away. Today is day 3 and we finally don't smell the chemicals any longer. As to what reason anything would need to smell so harsh, I have no clue. I haven't completely seen a change in the quality of our air. The pet smell from the cats litter box I suppose isn't as strong. We still have allergies and still sneeze about the same but perhaps it needs time to work it's magic.
My two month old daughter and I were having trouble with constant sinus issues and coughing. We got this product in hopes of getting the pet hair and fireplace door out of the air. Since running this purifier 24/7 we have both had a significant decrease in symptoms. The unit runs quiet and we have even had several occasions where sick people have come to visit and neuter of us has caught the illness (we had the UV running in the room). We will be buying another unit for the nursery.
I purchased two of these. The first day I ran them and left the house, I noticed such a clean smell when I came back home. I don't notice it anymore but I think it is just because I am used to it now. I put one in my son's room too. I probably notice the biggest difference in there as he is a teenage boy. They definitely work better in smaller bedroom sized rooms. I was very worried after I ordered these and saw the reviews on consumer reports.
I honestly cant notice a difference in air quality or smell. I had this running almost all the time for the last three months, and I just cant detect a benefit. I'm not overly sensitive to dust or dander, maybe that's why, but nevertheless I purchased this because we have a new baby and I thought it would be a benefit. I agree with other reviews that the best filter option is to vacuum the backside every month, rather than pay out so much in new filters each month.
allergies have all but disappeared inside. bought one for upstairs and one for downstairs. we leave it on the 2nd lowest setting. can hear it running but not an intrusive noise.
Answer: The "Pet Pure" and the AC5000 has several little differences's like the prices, filters, cost of filters, the UV light wattage and the size! The "Germ Guardian Pet Pure" is just a little smaller at 22 inches tall, it offers anti-microbial treatment in the HEPA, they both have a triple filter into one (it has a 3rd filter that Velcro's on it that some people wash out but I would recommend to vacuum it if you have a vacuum that has the attachable hose this will extend the uses of your filter as many uses said when they washed the charcoal filter it made it bad but try to vacuum it at least every two weeks for a better cleaning), it can be used for room size up to 155 sq. ft., the UV bulb is only a 5 watt (its been shown in test that this wattage doesn't kill microbes very well) and can be found a lot cheaper in its price. The AC5000 series which are 28 inches tall, with a bigger filter (but uses have companied that the filters are a lot harder to find than the other one), to be used for up to 193 sq. ft. area and more powerful ultraviolet (UV) lamp which uses a 8 watt bulb so it cleans the air even better plus kills more germs or smells a lot better. The AC5000 goes for $159, and AC5250PT pet, with more sophisticated digital controls which usually fetches $169.99. There is no need to change the filters on either one until the filter changes from white to gray or black! Users are very positive about AC4825 and AC5000's odor removal capabilities, mentioning fragrances, cooking, pet smells, pet/human hair (no it doesn't take away ALL of the hair only whats in the air or floor near it), and a lot of those users say it helps with tobacco smoke but it doesn't completely removes the tobacco smells. I think the ability to move to the source of an odor or moisture (mold) problem is Germ Guardians' strongest feature! Also, some user reviews point out that AC4825/5000 can emit a light "metallic" or like a burnt plastic smells at first so this is normal so don't get alarmed but it does go way pretty fast I think. Guardian offers a three-year warranty with proof of purchase. They both are a true heap and anti-mite filter captures 99.97% of pet dander, pet saliva allergens, pollen and dust mites. There are a large number of user reviews that report improved asthma/allergy symptoms when installing the GermGuardians. For my home personally we have 3 animals and live near a oil rig which they through up a whole lot of dust and my son has really bad allergies and since we bought this his allergy problems have dropped a lot also the amount of the dust isn't really bad as it was! So the 5000PT units are just a little bit better on its UV light to kill more air born particles but they both have there ups and downs! I personally have the 4800PT and other than the smell after you first plug it in we LOVE it so Ive bought a few more to cover other rooms! The filters are "very important to only buy name brand cause a lot of people have bought those off brands and were not too happy as they didn't last very long and they don't clean the air as good as the manufactured Germ Guardians Filters"! If you look on Amazon or other websites like it that sells them a lot cheaper than other places but again make sure they're manufactured from Germ Guardian! Also when you first plug in any of these air cleaners will put of a smell like plastic burning but that doesn't last very long at all but a lot if people plug it in outside or garage for anywhere from an hour to sometimes a few hours! This is so your room won't smell like burning plastic for as long it takes for it to stop putting out this smell! I'm so sorry this is this long but I really wanted to let you know everything about the two! I recommend this product to everyone i know! I can say its saved me from getting sick like I use to when my son would bring home some kind of illness that kids in school passes it on! So this filter plus the UV light has saved me a whole lot from being sick! Good luck with whatever you decide you want as there both GREAT products!