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expiredtunabreath posted Jul 07, 2024 12:27 PM
expiredtunabreath posted Jul 07, 2024 12:27 PM

Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402, $169.99, Amazon

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Amazon has Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402 for $169.99. Shipping is free.

https://www.amazon.com/Shark-HE40...14_9b&th=1
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Amazon has Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402 for $169.99. Shipping is free.

https://www.amazon.com/Shark-HE40...14_9b&th=1

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Model: Shark HE402 Air Purifier 4 True HEPA Cleans up to 1000 Sq. Ft., Captures 99.98% of Particles, dust, allergens, Smoke, 0.1–0.2 microns, Advanced Odor Lock, Quiet, 4 Fan, Charcoal Gray

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Jul 07, 2024 04:25 PM
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Joined Apr 2014
WayneTeKJul 07, 2024 04:25 PM
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Reviews aren't stellar but wanted to see if anybody had relevant feedback?
Jul 07, 2024 07:04 PM
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This comment has been rated as unhelpful by Slickdeals users.

Jul 07, 2024 08:20 PM
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Joined Oct 2017
HartageJul 07, 2024 08:20 PM
858 Posts
Quote from Ride_The_Sky :
I don't really believe any of these actually filter smell, no way, maybe you need industrial filter or something and I am talking about normal food/cooking etc smell.. Nothing too crazy like smoke smell, which probably is easier to clean since particles of those might be bigger.
These are just fans that push dust out and then trap it when it gets sucked in. So if you have dust allergies or with in dusty environment these are probably good. Not for smell.
Regarding 1000sqft..I'm gonna have to doubt that unless it is 1000sqft maybe once every 2 days. Do these list the air circulation rating like how many times can it change air in a room?
You don't believe it filters smell ? Well, it does have a carbon filter in it along with the hepa filter. The carbon filter binds the organic compounds in the air (smell) to itself. I don't think it depends on you believing in it or not, I'm pretty sure physics works even if you don't. Just FYI, carbon is the most common material that industrial filters use to filter out smell. Paint spray booths use activated carbon.... military gas masks use activated carbon. As long as the carbon filter is not saturated and the filter is working properly, it should filter out smell.
Jul 07, 2024 09:02 PM
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Ride_The_SkyJul 07, 2024 09:02 PM
15,522 Posts
Quote from Hartage :
You don't believe it filters smell ? Well, it does have a carbon filter in it along with the hepa filter. The carbon filter binds the organic compounds in the air (smell) to itself. I don't think it depends on you believing in it or not, I'm pretty sure physics works even if you don't. Just FYI, carbon is the most common material that industrial filters use to filter out smell. Paint spray booths use activated carbon.... military gas masks use activated carbon. As long as the carbon filter is not saturated and the filter is working properly, it should filter out smell.
I bought last winix because it was deal... No smell filtering. I bought Sharp with active plasma or whatever. Did not help much. I am thinking these are scam other than dust pollen dander pet hair etc.. Bigger particles. Not saying it does not filter. But it's just not strong enough because they can't filter enough in short period. It's just not possible with small fans.
4
Jul 07, 2024 09:28 PM
858 Posts
Joined Oct 2017
HartageJul 07, 2024 09:28 PM
858 Posts
Quote from Ride_The_Sky :
I bought last winix because it was deal... No smell filtering. I bought Sharp with active plasma or whatever. Did not help much. I am thinking these are scam other than dust pollen dander pet hair etc.. Bigger particles. Not saying it does not filter. But it's just not strong enough because they can't filter enough in short period. It's just not possible with small fans.
There are multiple factors that happen with filtering, with different goals. If the goal is to not let something through because the filter is between two zones, a clean zone and a contaminated zone. Then the filtering depends on thick media so to have capacity to filter in a single pass. When you are filtering in the same zone, the intake is in contaminated area and the processed air is released back into the same contaminated area then the strategy is to use multiple passes with larger volume. There is also keeping up with the release of new contaminants, or are you filtering it out faster than it is being replaced? If you wanted to have more effective filtering of odors with your winix. One suggestion is, if it will fit, put more than one or stack the carbon filters then run the filter in the room. That should give you increased scrubbing (filtration) of odors. The next step would be either get rid of the source of the odors, get more filter units (machines and stacking carbon filters) or both.

Also, I forgot to mention. Using your nose to gauge the concentration of compounds in the air and especially measuring trends in increase or lowering is not dependable method. The sensitivity of your nose to compounds is not linear, also your dealing with tolerance that constantly varies either increasing or decreasing so your perception of concentration changes and is not reliable. Better to use something like chemical analysis like with a spectrum analyzer or other method of reliable measurement to gauge concentration would be a better method.
Last edited by Hartage July 7, 2024 at 02:56 PM.
Jul 08, 2024 02:20 AM
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Ride_The_SkyJul 08, 2024 02:20 AM
15,522 Posts
Quote from Hartage :
There are multiple factors that happen with filtering, with different goals. If the goal is to not let something through because the filter is between two zones, a clean zone and a contaminated zone. Then the filtering depends on thick media so to have capacity to filter in a single pass. When you are filtering in the same zone, the intake is in contaminated area and the processed air is released back into the same contaminated area then the strategy is to use multiple passes with larger volume. There is also keeping up with the release of new contaminants, or are you filtering it out faster than it is being replaced? If you wanted to have more effective filtering of odors with your winix. One suggestion is, if it will fit, put more than one or stack the carbon filters then run the filter in the room. That should give you increased scrubbing (filtration) of odors. The next step would be either get rid of the source of the odors, get more filter units (machines and stacking carbon filters) or both.

Also, I forgot to mention. Using your nose to gauge the concentration of compounds in the air and especially measuring trends in increase or lowering is not dependable method. The sensitivity of your nose to compounds is not linear, also your dealing with tolerance that constantly varies either increasing or decreasing so your perception of concentration changes and is not reliable. Better to use something like chemical analysis like with a spectrum analyzer or other method of reliable measurement to gauge concentration would be a better method.
Thanks for the info but I am going by nose and of these don't eliminate the smell, it just doesn't work as advertised. Example I'll give you, cooking smell or food smell, lingering in bedroom well after cooking is done, sometimes kitchen window is closed or doesn't vent enough whatever reason the smell goes to bedroom or other rooms, running the air purifier we'll onto 4-5 hours agyer cooking is done should technically clear the air shouldn't be any smell. In my case, neither winix nor sharp clears that smell enough to be gone.
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Jul 08, 2024 06:39 AM
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HartageJul 08, 2024 06:39 AM
858 Posts

Our community has rated this post as helpful. If you agree, why not thank Hartage

Quote from Ride_The_Sky :
Thanks for the info but I am going by nose and of these don't eliminate the smell, it just doesn't work as advertised. Example I'll give you, cooking smell or food smell, lingering in bedroom well after cooking is done, sometimes kitchen window is closed or doesn't vent enough whatever reason the smell goes to bedroom or other rooms, running the air purifier we'll onto 4-5 hours agyer cooking is done should technically clear the air shouldn't be any smell. In my case, neither winix nor sharp clears that smell enough to be gone.
Ahh... now that I have some new information about your goal I do have another suggestion. Cooking disperses compounds in the air that settle on and permeates surfaces, especially fabrics. These then give off odors, much like a smoker's car or a smoker's house does even when they are not actively smoking. I suggest an ozone generator perhaps one of these https://www.vevor.com/s/ozone-generator. This is what restoration companies use to reduce odors by literally disintegrating them by use of ozone or o3. Be careful and read up on ozone machines before you use it, they are genuinely hazardous if not used properly. Hazardous to the point of, if in high enough concentrations it will kill things and bleach surfaces. One of these small machines in a closed room will quickly build up enough ozone concentration to kill things. So again, read up on it's proper use and be careful. But done right, this may well help you get rid of the odors.
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Jul 08, 2024 12:55 PM
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Ride_The_SkyJul 08, 2024 12:55 PM
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Quote from Hartage :
Ahh... now that I have some new information about your goal I do have another suggestion. Cooking disperses compounds in the air that settle on and permeates surfaces, especially fabrics. These then give off odors, much like a smoker's car or a smoker's house does even when they are not actively smoking. I suggest an ozone generator perhaps one of these https://www.vevor.com/s/ozone-generator. This is what restoration companies use to reduce odors by literally disintegrating them by use of ozone or o3. Be careful and read up on ozone machines before you use it, they are genuinely hazardous if not used properly. Hazardous to the point of, if in high enough concentrations it will kill things and bleach surfaces. One of these small machines in a closed room will quickly build up enough ozone concentration to kill things. So again, read up on it's proper use and be careful. But done right, this may well help you get rid of the odors.
Thanks that's very helpful. I remember the ozone generators they used to sell years ago as fan less air purifiers they had metal blades that vibrated or something. I'll look into those again.
Jul 08, 2024 01:15 PM
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gustopherdansoJul 08, 2024 01:15 PM
469 Posts
Quote from Ride_The_Sky :
Thanks that's very helpful. I remember the ozone generators they used to sell years ago as fan less air purifiers they had metal blades that vibrated or something. I'll look into those again.
Ozone is harmful tho. Can't be used while you occupy the space. If you want good smell filtering I'd recommend something with multiple pounds of charcoal or a diy option like this. Got to 2:30 mark of the video

https://youtu.be/eYOvnqoW4H0?si=Ycf4pZiQPM2iADad
Jul 08, 2024 01:45 PM
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HartageJul 08, 2024 01:45 PM
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Our community has rated this post as helpful. If you agree, why not thank Hartage

Quote from Ride_The_Sky :
Thanks that's very helpful. I remember the ozone generators they used to sell years ago as fan less air purifiers they had metal blades that vibrated or something. I'll look into those again.
Lol, oh no, not the same, those air purifier ozone units are like Q tips compared to the specific ozone only generators that I put the link to. They are several orders of magnitude more than those old units associated with air purifiers. The air purifier units put out so little that it can't really harm you. These units that are intended for industrial or professional use really will harm or kill if not used properly. I really can't emphasize enough to read up on it and be very careful in it's use. They really do physically oxidize the things it comes in contact with. So usually in a small room you let it run for only 10 -15min then open windows and air it out to check if the odors are gone. Keep it on for too long and you will see damage to surfaces like color fade and other surface damage indicative of oxidizer damage. Really, please be careful when using them.

Here is a youtube video of how much damage ozone generators do in an experiment some youtuber did.... https://www.youtube.com/watch?v=DAbdGwC9yPU It will do the same damage to your lungs if you inhale high concentrations of it. Some people use ozone generators to kill ground wasp nests, and it does it fast.
Last edited by Hartage July 8, 2024 at 06:55 AM.
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Jul 12, 2024 11:24 PM
199 Posts
Joined Feb 2012
yckJul 12, 2024 11:24 PM
199 Posts
Ive had this one for over a year and I really like it. Whenever I cook or turn on a candle or do anything affecting the air, it's quick to detect it and turn itself up to bring the air quality back to 100. Its range is pretty impressive. It detects things from several rooms away and pretty quickly. I like that I can find the filters easily, and even generic if I wanted to save money. No complaints. Highly recommend.
Jul 13, 2024 12:50 AM
195 Posts
Joined Oct 2020
NervousKite589Jul 13, 2024 12:50 AM
195 Posts
Quote from Ride_The_Sky :
I bought last winix because it was deal... No smell filtering. I bought Sharp with active plasma or whatever. Did not help much. I am thinking these are scam other than dust pollen dander pet hair etc.. Bigger particles. Not saying it does not filter. But it's just not strong enough because they can't filter enough in short period. It's just not possible with small fans.
I have a Bissell 400 it has a cardboard carbon filter and it does a good job of cleaning the air. I live across the from my bro that has 3 cats and Waits too long to change the litter.🤣 I just basically leave it running on high unless I'm in the room trying to watch tv.
Jul 13, 2024 12:54 AM
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oldcat87Jul 13, 2024 12:54 AM
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Smoking hot
Jul 13, 2024 12:56 AM
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Ride_The_SkyJul 13, 2024 12:56 AM
15,522 Posts
Quote from NervousKite589 :
I have a Bissell 400 it has a cardboard carbon filter and it does a good job of cleaning the air. I live across the from my bro that has 3 cats and Waits too long to change the litter.🤣 I just basically leave it running on high unless I'm in the room trying to watch tv.
I think that's a good Dora. Can you let me know the model number. I have same issue except my cat stinks up the place when I am not home. LOL

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Jul 13, 2024 03:57 AM
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dealzfanJul 13, 2024 03:57 AM
468 Posts
Ignore my comment, I have the 6 fan model.
Last edited by dealzfan July 12, 2024 at 09:10 PM.

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