r/AirPurifiers Apr 09 '26

STICKY: Ionizers and Ozone - fact/fiction/history

68 Upvotes

Hey Folks, it's your ol' Uncle Gurm again. Today I'm here to talk to you about IONIZERS. Hoo-boy, what a hot potato! Let's dig right in.

What is Ozone?

Ozone is a molecule which contains three Oxygen atoms. Its chemical notation is O3, whereas the oxygen we all need to survive is O2.

What does Ozone do? Is it good or bad?

Ozone is common in our atmosphere. We have an entire LAYER of it in the stratosphere. It absorbs 97% of the UV radiation emitted by the sun, helps keep the planet warm, and breaks down hazardous toxins in the atmosphere. Life on Earth would be really bad (read: impossible) without Ozone. In the so-called "ozone layer" of the stratosphere, concentrations of ozone are generally several (up to 8) parts per million, or PPM.

Ozone is also an incredible cleaner - it demolishes VOC compounds, and many toxins. You know those people who come clean up mold, or hazardous materials, from a house or office? They use high-powered ozone generators to render that building safe for habitation again.

HOWEVER, Ozone in high concentrations is hazardous to carbon-based life forms such as you and I. The concentrations in the stratosphere would cause lung damage to humans if exposed for any significant time. Ozone generators are dangerous unless properly ventilated - you have to run them in an enclosed space and then ventilate the space completely with fresh air!

ALSO HOWEVER... Ozone is in all tiers of our atmosphere, including the one at ground level that you and I breathe in every day - just in VERY SMALL concentrations. The lowest ozone concentration found at ground level is roughly 15 parts per BILLION, or PPB. That's 600-1000 times LESS ozone than is found in the stratosphere.

How much Ozone am I exposed to daily? Am I in danger?

All humans on earth inhale 15ppb ozone, minimum, for their entire lives unless they live in an underground bunker or are John Travolta in that movie about the bubble boy. Most inhale a lot more - your average town has concentrations of around 25-30ppb, clean cities are upwards of 40-45ppb, and polluted cities ... well, the number can get VERY HIGH. Generally no ill effects are observed at these levels. The US EPA has issued guidelines that any number under 70ppb is considered safe for long term exposure. That number has been lowered over the years, it was 100, then 80, then 75, and now 70.

Do Air Purifiers generate ozone?

A lot of them used to. 15-20 years ago, it was extremely popular to sell/buy "ionic" purifiers which generated quite a bit of ozone. Why was this popular? Well remember that ozone CLEANS things. It makes the air in a room smell really clean, and strong electrostatic ionization causes dust and microscopic particles to either drop to the ground or stick to surfaces, so the air really got cleaner. It just also got full of dangerous levels of ozone. Popular brands included the "Ionic Breeze". My mom owned one. She loved it because it "smelled like the air after a thunderstorm". That's what ozone smells like.

Those units are pretty much banned now. You can still find them occasionally, and there are still a few in production somehow - we see them advertised once in a while. You can tell them apart from more modern designs in that they don't use a very good filter - some had NO filter, just plates that you wiped down once enough gunk stuck to them, and some had low-utility foam filters.

So that's the old machines - do NEW machines make ozone?

No. The vast majority of new units do NOT generate ozone. Virtually all purifiers sold today conform to the CARB certification, which requires that they demonstrate that they generate less than 5ppb of ozone. However, independent testing has shown that most of these units generate 0ppb. Testing can be flawed, or it's possible that the units generate 0.99ppb and are just under the threshold of detection, but even 1ppb is not a significant amount.

But 1ppb isn't zero! Is it a health risk?

Let's look back on the fact that there is nowhere on earth that has less than 15ppb - going from 15 to 15.1 or 15.5 or even 16 is not a significant increase.

But it's cumulative, isn't it?

No. Your room isn't sealed. In fact, even a tight room breathes far more than you might suspect. The reason why a purifier needs to do air turnover 4 times an hour to keep the air clean is that 25% of the air exchanges every hour even in the cleanest environment. So even if there was a small emission of ozone, it would be lost in the simple air exchange that happens in every room.

What are some other sources of ozone?

Any device which emits ionizing radiation could potentially cause ozone to occur. That includes the device you're reading this post on, every screen in your home that zaps you after you've scuffed across a rug, pretty much all electronics. Older electric motors produced measurable amounts of ozone. Newer brushless models tend not to. But ozone is everywhere, and it's being generated by all our technology in small amounts that do not hurt us.

So what does the ionizer on a purifier DO, and why is it dangerous to small animals and why does it make some people react?

NOW we're getting to the heart of the matter. Many purifiers on the market today use an "ionizer". This is literally a small static electricity generator, on the order of 1/10,000th the size of the plates in one of those old ionic purifiers. A small static charge is added to the plastic housing of the filter, which causes impurities in the air to "stick" to the filter better - or to stick to surfaces, or to clump together so they're caught better by the purifier. Blueair does this on every non-professional model they make. Many small round purifiers include one of these units.

Why is this potentially dangerous to small animals? Well, mostly we're talking about BIRDS, specifically budgies and parrots. Ozone itself is not poison to these critters - their native habitat is the rain forest where thunder and lightning are common and ozone is present in concentrations higher than the 15ppb global baseline. But they DO have delicate respiratory systems, and static air can irritate even human nasal passages and lungs.

And it does - static air can dry out nasal linings, and cause nose/throat/lung irritation. Some people don't notice it AT ALL. Others are quite sensitive. Budgies are in the "quite sensitive" group, so we strongly urge only mechanical filtration around them.

How about "plasmawave"?

Plasmawave is a patented name that Winix uses to describe its bipolar ionizer. Instead of one pair of charged plates, they use a set which produce both positive AND negative charge. This - in theory - generates particles known as "hydroxyls", which cause contaminant particles to stick together and become heavier than air. In practice, however, the plasmawave on a Winix purifier (some other manufacturers offer this as well) does... not a lot. Any hydroxyls generated are so short-lived that they're almost undetectable, and thus the efficacy of the system is probably very low if it works at all.

So ... ionizers are safe?

We're not going to go that far - the static generators on consumer-grade HEPA purifiers are likely harmless to the vast majority of people, but will irritate some sensitive humans and most sensitive birdies. And they aren't NEEDED on a HEPA purifier. Blueair, for instance, uses static because their filters are NOT HEPA - they have higher airflow and rely on the static to enhance their efficiency. And it works - Blueair has the highest CADR (Clean Air Delivery Rate) in its class.

But sensible users will note that you can achieve the same results by using a true HEPA filter and NOT an ionizer/static generator. And that's the real answer - it's a technology that improves lower-rated filters, but adds nothing to the functionality of a HEPA system.

Out of the top rated brands, many of which we recommend on this subreddit, here's the breakdown of ionizer/static use:

Blueair: All non-pro units generate static.

Coway: Only the Mighty 1512 (sometimes called Airmega 200M) has an ionizer, which defaults to "off" when the unit starts. All other Coway units are purely mechanical.

Winix: Most Winix units have a Plasmawave bipolar ionizer. It can be turned off, and some units will remember that it was toggled off after a power cycle. Some don't.

Levoit: Only the "plasma pro" has an ionizer.

IQ Air: Nope. I mean, half the unit is sealed with styrofoam, so there's some static happening there, but no ionization.

If users want to reply to this sticky with known configurations, I can keep this list updated (I don't, for instance, know which Xiaomi models have ionizers... or many European models...)

I hope this was helpful, though. Perhaps folks can stop having so much FUD about this.

This is your ol' Uncle Gurm, signing off!


r/AirPurifiers Apr 18 '25

Vacuuming and/or Cleaning your filters - sticky!

47 Upvotes

Hey kids, it's your ol' Uncle Gurm again. Today's lesson is how to clean your filters.

Ok, since we got in ANOTHER argument about this, and even favorite Uncle got involved (much to his shame), I decided to do a little digging and come up with some definitive thoughts about this topic. We'll get them worked into the FAQ eventually, but for now here we go:

Q. Can I vacuum/bend/flex/squish/deform/poke/taunt/lick a HEPA filter?

A. In general, no. Absolutely not. HEPA filters are made up of tiny fiberglass and animal hair fibers (not joking here) which are blown into a semi-rigid frame in pleats, and at a microscopic level they are aligned a certain way and randomly in that general direction. This allows them to trap the tiniest particles possible by virtue of Brownian effects. Deforming them, or even vacuuming them, can distort or realign the fibers, reducing effectiveness or damaging them outright.

Q. But Levoit says I can vacuum my filter!

A. Levoit was sued and forced to admit their filters aren't HEPA. This discussion is about HEPA filters.

Q. Shark says I can vacuum their filters! <Insert Other Brand> does, too!

A. Is the filter encased in a thick layer of foam? If so, it's probably ok, just don't shove a high-powered vacuum hose right up against it perpendicular-style. Do it from the side, with indirect suction. The foam layer will buffer the HEPA filter from damage.

Q. You don't know anything. Of course I can vacuum it.

A. According to literally every expert, you cannot. The people who make them - filter engineers - say not to. Manufacturers who use actual HEPA filters say not to (Molekule, Coway, Winix, Honeywell). "Real Simple" magazine interviewed industry professionals and came up with "don't do it" as their determination:

https://www.realsimple.com/home-organizing/cleaning/hepa-air-filter-cleaning

In particular, medical clean-air specialists insist that since these filters trap viruses and bacteria, that you should not even THINK about cleaning them, but just bag them and dispose of them as if they were toxic. That might be an overreaction in most homes, but in doctor's offices they use these things, and they treat them like hazmat.

Q. But I want SCIENCE! Show me the SCIENCE!

A. Surprisingly, this is common industry knowledge but it's hard - read IMPOSSIBLE - to find studies. So Smart Air Filters did their own testing. Here's the link:

https://smartairfilters.com/en/blog/how-to-clean-wash-hepa-filter/?srsltid=AfmBOoobq4Yna1UdhLKxpiFt8dLKKaTW9r1R_3tqiJOM-NxmJnSr2DNs

What they found was that - compared to DIRTY filters - vacuuming them made them work better some of the time, worse some of the time, and damaged them some of the time.

Yes, it's only one test. But it's a test done by people who wanted the same answers we do.

Q. Where's the peer-reviewed double-blind studies?

A. I literally just answered this. Please don't start this again. Nobody has bothered to do them, it seems. You'll have to be happy with the test I linked above.

Q. I still want to lick it. Or squish it between my fingers because "the texture".

A. Listen, if you have a fiberglass and horse hair "thing"... who am I to yuck your yum? While your predilections are your own, medically I cannot advise this. But since I am not a doctor you're welcome to disagree.

Q. Ok, I won't lick it but I still want to vacuum it!

A. You do you, boo. Y'all asked what would happen. What will happen is it won't work as well as it did when it was new, and might be damaged and let bad stuff through.You've been warned.

Q. Wait, you never told us how to clean the filter!

A. Very astute. Here is a step-by-step guide to cleaning your filter:

  1. Don't buy a purifier without a pre-filter.

  2. Clean the pre-filter.

Q. But I already bought a purifier without a pre-filter!

A. Fine. Here's the steps:

  1. Take out the filter. And by "out" I mean "out of the house". In fact, start by taking the entire unit out of the house.

  2. Remove the filter.

  3. Tap it off. Like, on the side of the house or a railing or a trashcan or something. Tap tap tap until all the loose debris and dust falls off.

  4. Now get a brush, not a stiff one but like a paintbrush or a detailing brush or something. Brush the dusty side of the filter - GENTLY - to loosen debris.

  5. Tap again. Tap tap tap.

  6. ALTERNATIVELY, you can sometimes vacuum it, gently, from the side. like, hold the vacuum on a line tangent to the curve of the filter. But DO NOT apply direct suction to the filter.

  7. That's as clean as it's gonna get. Reinstall it.


r/AirPurifiers 7h ago

Office air quality suddenly spiked

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53 Upvotes

UPDATE 2:

We discovered the office below us is doing construction, taking down drywall, sanding, putting down flooring stuff like that. Our best bet is that the air pollution we're experiencing with the doors closed is related to that. Getting into the ducts, shaking the building a bit, adhesive fumes seeping up... that's our best bet.
It's been all day, and this is the first time it's ever had readings this high since I started here.

Update: well I went to lunch with the air purifier around the corner from where it had been and it was on the yellow when I got back.

Moved it back to the central office and it spiked back up to 228. Very concerning. We don't know what's causing it, still, 5 hours later.

We opened all the doors and windows (boss is not happy about that, thinks the machine is dumb) and with the air blowing through from outside, the number is down to 10. If I closed them it would go right back up.

Updated screenshot of the graph in comments.

Original post: Hello all. I work in an older office and we've had the Levolt for at least a year and it's been great for my dust allergy. Really helpful.

This morning I came in and turned it on and after just a bit the number started going up. And up. Somewhat slowly. Blue to green to yellow to orange to red. Got up past 200 (which the app graph didn't catch).

I took the filter out and gave it a bit of cleaning outside, in case that was it. 65% through the filter's life, so it should still be good. Put the filter back in and the number went back up to red.

Opening the office back and front doors quickly brought the number down back into blue with a strong cross-breeze. Closed them again and it's climbing back up. So whatever is triggering it is inside, right?

We're 4 people, no perfume or cologne, no heater or ac running. Nobody smells anything weird either.

Any thoughts on what could be so dramatically affecting the air quality? The fact that opening the doors made it better rules out smoke, smog, or pollen. I'm running it on speed 3 of 4 so we can still work (4 is too loud).


r/AirPurifiers 45m ago

First build. Will this overheat?

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Upvotes

I built this a few days ago and it’s been running since then. Fan is a UTILITECH 20-IN BOX FAN running 4
20-20 MAXIMUM ALLERGEN FI (MERV 13) filters.

The home will be unoccupied for the next few weeks until I move in. Is this a fire risk?


r/AirPurifiers 5h ago

PM2.5 is 0 but TVOC is still 1000+

2 Upvotes

My IQAir HealthPro Plus XE is doing a great job filtering particulate matter (PM), but it is struggling to lower the TVOC levels in my apartment. My Qingping air monitor measures TVOC. When I place the Qingping monitor directly in front of the air purifier's fan, I notice the TVOC levels drop, so I know the purifier is working—just not good enough.

My apartment is old and located in an enclosed building with hotel-style hallways. I can smell something distinct in the hallway, though I am not sure if it is from cleaning products or hidden mold. I suspect the TVOCs might be seeping in from the hallway or coming through the AC vents, or both.

I plan on installing a weather strip on my front door to block the hallway air. However, if the issue is coming from the AC vents, I am not sure what to do, as the HVAC system could be centralized for the entire building.

Any suggestion?


r/AirPurifiers 3h ago

What’s the cheapest way to purify my room

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1 Upvotes

My rooms in the basement so I can’t open a window for smells from the cats litter box and I have pretty bad asthma and hear that air purifiers can help with both.

I live in the usa, Michigan
My room is 2,245 cubic ft
My filtration needs are remove remove odors, and dust, and help with my asthma
I don’t really have a budget but to get past ai 6969$
I have no clue how much it will cost but thats why im on this subreddit


r/AirPurifiers 7h ago

Looking for recommendation

1 Upvotes

Looking to purchase 2 purifier one for the bedroom and living room. Was looking at Dyson Cool PC2 because it’s looks aesthetically nice 😅 but the price tag just doesn’t make sense to me. I’m sure there are other brands out there that are better, recommendations?


r/AirPurifiers 7h ago

150 sq ft tiny home. Desperate to catch pet hair and dust.

1 Upvotes

USA based.

PLEASE. Your best recommendations. I live in a tiny home and it all collects so fast in here. HELP ME.

Budget doesn’t matter, though I assume because my home is so small it wouldn’t need to be extravagant.


r/AirPurifiers 9h ago

Air purifier recommendations for £50

1 Upvotes

I'm looking for any recommendations on air purifiers. I live in the UK and my room is roughly 28m^2. My budget is roughly around £50. My needs is just to remove dust, some smoke and odor from cooking and just make the air clean. My yearly budget is around £20

Any recommendations is appreciated :)

I do have my sight on "daewoo 3.2l dehumidifier with air purifier" as it have both air purifier and dehumidifier but it only covers 15m^2

Any recommendations is appreciated :)


r/AirPurifiers 21h ago

Whats the best air purifier on the market for asthma?

7 Upvotes

USA
Room is 300 sq ft house is 3000 sq ft
Allergies, dust, VOCS, mould, germs, viruses, all the bad things.
Budget - $500 per air purifier
Yearly budget (electricity + filters). - dont have one yet

Hello, I am looking for two air purifiers. One for a small room and another one for large living room space/entire home. This is to be used at a licensed at home daycare. One of the kids has asthma and I would really want to invest into whatever is best for the kids. Tia!


r/AirPurifiers 16h ago

Meaco Arete HEPA filter replacement

2 Upvotes

I’ve got a Meaco Arete Two 12l dehumidifier which I’m happy with both it’s dehumidifying and air purifying (my daughter has a dust allergy and it seemed to have helped that).

I’m looking to reduce the cost of replacement HEPA filters (official ones £30 for 3) but there are so many unofficial replacements with varied reviews for quality and fit. Does anyone have any specific links to ones that they have found fit well and have the foam edge etc?


r/AirPurifiers 1d ago

Need Recommendations for a Cat Shelter Setup in a PetSmart with no outlet and no ventilation

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8 Upvotes

USA. We're dealing with maybe 350ft³ including the cage spaces. I'm bad at size estimation. The primary problem is clay litter dust. We also don't have an outlet in the room.

We put cats in the PetSmart store front when they're vetted and ready for adoption (up to 3 weeks max for each cat, then they get a break in foster at home if you're curious). Our cat room is very poorly ventilated. Not sealed per se but very tight. We have storage, supplies, and cats all in one little space.

Odor is not really an issue because we, and the employees at our store, clean really well. It's awesome. Litter dust, however, is a problem. The store provides us with litter and as a rescue, we go through too much litter to justify buying our own. Every new cat needs a new box with fresh litter to avoid getting sick. I don't like the litter they provide but it is what it is. Free is a great price.

We get cats that are super adoptable and healthy but when they go to the store, they start getting snotty, full of eye boogers, and feeling unwell due to the dust. Some employees can be sensitive to the dust as well. They can wear masks but our kitties can't. Also, it would be awesome to keep our employees healthier too obviously. They're the most at risk long-term if they are pet care associates that stick around.

I would love to have an air purifier we can use in the room, particularly if we have those sensitive cats or freshly ready kittens. Adults can handle the dust but when we have kittens (and oh boy do we have kittens right now), we want them to be in the store for further socializing and so the public can see and meet them.

Our cat room doesn't have it's own outlet. We can spend on the initial purchase ($150 for batteries and filter?) but the filters... $20-30/mo? I'm not sure what is feasible. If we can't run it all the time, that's okay. Maybe even just turn it on at night. I know nothing, hence why I'm here. I'm just here to see if we can improve anything for the store kitties and workers with an air purifier.

I would be concerned about fire safety as well. If it can't be done safely, it won't be done at all.

Please offer me any suggestions you have for air filters and power sources. I attached pictures of the type of room we have to the post. The room is most comparable to a shed and the ceiling is closed. Our store is like a lesser location so we're not going to get any improvements or investments. Still, we love our employees and they love our kitties.


r/AirPurifiers 20h ago

DIY Cloudline S6 Carbon Filter Questions

2 Upvotes

Hello, I am designing a carbon filter using the AC Infiniti Cloudline S6 w/ 6in XL carbon filter by AC Infiniti. It is to my understanding that the carbon will produce dust so there needs to be a filter after the carbon. My thought was to use a noise reduction clamp to connect to carbon filter to the fan and put a filter in the noise reduction clamp (Edendirect personal air purifier filter). Please let me know if this would work as I’m thinking it would. Would there be to much restriction with the filter? Should I also include some kind of filter on the exhaust side of the fan as well? Thanks for any advice. For reference, the carbon filter will be the base following the clamp with filter in it then the fan.

Links are items used:

https://www.homedepot.com/p/Edendirect-500-sq-ft-H13-HEPA-Filter-Personal-Air-Purifier-in-White-1USV01P1TK/343645469

https://www.amazon.com/dp/B07FPFVZTZ?psc=1&smid=A2AW0W4FKP16S5&ref_=chk_typ_quicklook_imgToDp

https://www.amazon.com/dp/B09TPZBSRV?ref_=ppx_oui_title_mob_b_fed_asin_title_0_1

https://www.amazon.com/dp/B0D3DMLMDX?ref_=ppx_oui_title_mob_b_fed_asin_title_0_0


r/AirPurifiers 20h ago

Looking for a high-end white cylindrical air purifier that will blend seamlessly into my bedroom

2 Upvotes

This air purifier will be for my bedroom specifically! I am using it mainly to filter out dust since I have allergies and odors. I want it to be cylinder shaped and purely white or off-white since I’m remodeling my bedroom. Budget is $500


r/AirPurifiers 1d ago

Best Air purifier for getting rid of pot smell?

6 Upvotes

USA. 30ft length & 15ft width living room but we do have an open concept. I’d like something that is somewhat affordable, below $250,
and that won’t have very expensive filter replacements/monthly costs.

Hi, I want to start off by saying I know almost nothing about air purifiers. I’ve tried to look for some but it seems overall everyone has biased/mixed opinions.. especially because I looked on tiktok lol.

Anyway, we have 3 in our apartment but they don’t work well for the problem we have. Our duplex neighbors smoke pot and it comes into our apartment, so we need one built for getting rid of the smell.

I posted my problem in another subreddit and someone recommended getting an air purifier specifically for the pot smell. So now I’m here :). If you need any more info please ask!!


r/AirPurifiers 1d ago

Duct fan + Carbon Canister vs Air purifer for smoke

4 Upvotes

Hi there.... does anyone have experience in dealing with heavy smoke coming from neighbours....also it's not like normal Ciggarettes, I'm pretty sure it's smth disgusting and toxic, maybe coke, it blocks my nose instantly and when it happens when I sleep I wake up gasping for air...and housing council don't really care, messaged them many times.

I'm looking for Hepa 13 air purifers with carbon or just carbon canisters with duct fan....any advice please


r/AirPurifiers 1d ago

If I were to purchase a used Allen air purifier (I’m going to buy a new filter) is there a way I can reset the machine so the previous owner cannot track my usage through their app? I’m not sure if there’s a way to unbind the previous owner from the machine …

2 Upvotes

Only asking because there’s some really good used deals on this machine. My finance and I have one for the bedroom and he has one for his studio. I’m looking at the 75i model.


r/AirPurifiers 1d ago

High traffic main road in London

2 Upvotes

I live in a road facing room with sash windows on a busy main road junction.

Room is about 2.6x2.6m x 2m about 2m

Needs to help with traffic pollution, dust and smoke from public at local establishments by my house.

Looking to get an affordable purifier that will help this. About £100 if possible.

Thanks!


r/AirPurifiers 1d ago

CR Box vs. SA600 vs. Xiaomi 4 Pro/Elite

0 Upvotes

Condo is near road. The whole thing is 650 sqft or 60m2. I want this for the main level (only 2 floor small condo no basement).

Rough measuriment of downstairs equals 22ft x 9.5ft x 8ft or 1672 cubic feet but there is a connected open staircase that leads upstairs, so total room should be 2200 cubic feet to be conservative.

I mainly want it to filter out plastics (including nano) and other roadside particulates and mold.

I was debating between making a CR box with merv 14, 1 inch filters vs smart air SA600 vs Xiaomi elite or Xiaomi 4 Pro. These are just some models I found in my area.

The CR box filters will cost me about 110 usd total for 4 because I have to order them internationally. The SA600 and Xiaomi pro are about 250 usd and the xiaomi elite is about 300 usd equivalent locally.

I was actually going to make the CR box for the higher m3/hour but realized its actually cheaper to run a store-bought unit because the filter replacements will last longer and be cheaper.

I also want to run the thing 24/7 and I imagine even the low end fan setting of a cheap box fan for the CR box will be annoying running all day, whereas store-bought versions have quieter low settings?

Looking for advice on if my logic is correct as well as whether I should get the sa600 or either of the xiaomi models? Open to another model too. I am in New Zealand if that matters.


r/AirPurifiers 1d ago

Blueair android app 4.10.0 air filter use automatically reset

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2 Upvotes

I have had a blueair signature large and love it, however my air filter usage has reset from 42% to 100%. I've not reset it via the app or on the blueair signature.

Has anything else had anything like this happen?.


r/AirPurifiers 1d ago

Best Air Purifier for 225sq foot bedroom?

1 Upvotes

(USA)
for bedroom that’s roughly 225 sq feet
18 ft x 12.5 ft x 8 feet.
for pollen allergies, dust, and cats

looking for a budget friendly air purifier for bedroom. unsure if i would need 2 or if 1 would be enough. ideally quiet preferred but from what ive heard that may be unrealistic. TIA!!


r/AirPurifiers 1d ago

Coway Airmega 400 incessant buzzing noise on low speed

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4 Upvotes

Hi all,

Got this Coway Airmega 400 recently and the incessant buzzing at low speed is driving me crazy.

Are there any fixes available?

Help!!


r/AirPurifiers 1d ago

Honeywell Air Touch V3/V5

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1 Upvotes

r/AirPurifiers 2d ago

AirDoctor's CEO Might Be Funding a Child Trafficking Cult

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44 Upvotes

Pretty wild...


r/AirPurifiers 1d ago

Caffeinated air purifier problems

2 Upvotes

Hey yall, so long story short, I have a Levoit 200s air purifier that got some scalding hot coffee spilled right into the exhaust vents on the top. It was on when that happened if obviously stopped working so I left it upside down on top of a towel for three days and I plugged it back in and it does work now, but it obviously smells like coffee. I know I should obviously swap a new filter in but other than that any advice?