AirMedic Pro 6 Ultra Air Purifier

I would avoid airpura because their after service is poor (speaking from personal experience). For odors, especially marijuana and smoke I strongly recommend Allerair. North american brand which uses large amounts of activated carbon and strong fan to cover large rooms. Mine has been working flawlessly over a decade.

Mind you that I went for a stronger air purifier a few years back as I reside in an area where wildfires occur regularly. I chose to go with heavy carbon approximately 35lbs. I went with the Pro 6 ultra smoke eater.

Funny coincidence,,, I actually have an allerair unit running at home (we got it for smoke and allergens), and then my wife noticed the exact same brand being used at the salon she goes to. She said the air in there always feels super clean, even with all the hair dye, sprays, and product use going on all day. The salon’s around the same size as yours and also doesn’t have windows that open, and apparently it made a huge difference. What’s great about AllerAir is they’re specifically designed for stuff like chemicals and VOCs. not just dust and particles. They use deep carbon filters, no off-gassing, no plasticky smell, and they’re actually made in North America. If you’re looking for something that can really handle salon air, I’d definitely check them out. Cheers!

Allerair purifiers all the way. I don’t recommend Airpura, their after service is poor i heard

I own 2 allerair units, thinking of buying a 3rd one for my cottage. I love my units. I have been using it for years now, and do filter changes every 2 years. Customer service has been very good to me so far!

Decibles ratings has been very good, use one in the kitchen and main living area on the 2nd floor. It’s backround noise, never been really bothered by it. Obviously if you put the speed on the highest setting, you will definitely hear it. But on medium to low, it is rather quiet

I would strongly suggest allerair air purifiers for anything regarding Voc’c, odors and wildfire smoke. For these pollutants you need an airpurifier that has a lot of cfm and activated carbon. Allerair has these essential requirements. I have used austin in the past however i figured their carbon quality was below par and less quality.

Not enough carbon. Allerair air purifiers that i use has 30-33 lbs of carbon. Strongly recommend for VOCs and odors. Cheers!

If you have the budget, i would suggest allerair air purifiers. In highly congested areas, where there is traffic, people, construction, etc and the air quality is really poor. I can’t even start to imagine how people live in these areas with windows open. Reality is, any building typically circulates air from outdoors/indoors. So individuals air purifiers is a must to remove pollution. The good thing about allerair is their service and the fact that filter changes are done every few years. If you have a budget for an air purifier, allerair is the way to go and you won’t regret it! ;)

First and foremost, I'm so sorry about your rabbit. That's really awful... I'm not sure I'd keep using the Molekule purifiers. The [brand was subject to a class action suit](https://www.classaction.org/media/sobel-v-molekule-inc.pdf) and ended up settling. There was a [separate suit brought by California Air Resources Board (CARB)](https://ww2.arb.ca.gov/sites/default/files/2023-12/molekule_incorporated_sa.pdf), as Molekule sold its Home One indoor air cleaner before being certified for low ozone emissions. Their purifiers perform poorly for particulates. And depending on the exact catalyst used in PECO, you *could* be creating unintended byproducts. For gases or fumes, you would need sorbent media. I have no idea how well plain/untreated sorbent media (e.g., activated carbon, activated alumina, or synthetic zeolites) adsorb sulfuryl fluoride or chloropicrin. I would strongly recommend seeking out an environmental consultant that performs gas testing and possibly a chemist versed in sorbent materials. Failing that, you may want to post on r/AskChemistry. The issue with plain sorbent media is that some gases aren't adsorbed well, which can cause odors to emanate from the purifier. You may also have issues with competitive adsorption, where weakly adsorbed gaseous molecules may be displaced by more strongly adsorbed ones. This tends to happen as a sorbent medium becomes saturated. There are modified sorbent media like potassium permanganate (KMnO₄) impregnated carbon or alumina to help increase removal efficiencies of certain gases. But KMnO₄ is a strong oxidizer, breaking down certain compounds via redox reactions. In addition to other gases in your airspace, I don't know if breaking down Vikane could result in problematic or toxic compounds being formed. **We would generally recommend ventilation (fresh air and/or exhaust) first, as this is cheapest and easiest solution.** But the best choice of air purifier is likely **AllerAir**, as they offer over 40 customized blends of carbon / sorbent media. I'd stick with the AllerAir [AirMedic Pro 5 series](https://allerair.com/collections/pro-5-series) or [AirMedic Pro 6 series](https://allerair.com/collections/pro-6-series). Different models (HD, Plus, Ultra) have varying amounts of carbon. Be sure to read the specifications for each. Generally you'd need one purifier per walled-off room if possible. Unfortunately most commercially available sorbent media purifiers are loud - very difficult to get around that. **Important**❗: to specify a custom carbon/sorbent media blend, you must contact AllerAir first to place your order. Sorry I can't be more specific on the chemistry side. Good luck!

Most common air purifier brands do not have enough nor the right type of sorbent media for gases, vapors, or odors. Sorbent media in air purification = activated carbon, activated alumina, or synthetic zeolites. Heavyweight sorbent media purifiers are very expensive, very loud, and clean the air more slowly than particulates-focused units. This is due to the need for ["dwell time"/"residence time"](https://www.airscience.com/carbon-filters) and the thick media beds. The two major heavyweight brands in the USA & Canada are **Airpura** or **AllerAir**. You want to look for models with 15 lbs.+ carbon canisters. Most standard options for these purifiers are plain/chemically untreated sorbents, which do *not* have high removal capacities for all gaseous "species". This sometimes presents problems where an odor emanates from the sorbent bed (possibly the not-well-adsorbed acetaldehyde) or there's a spike on tVOC monitors despite a reduction in odors. Assuming you don't live near a refinery or have really bad air chemistry otherwise (e.g., from fires), you may want to look into potassium permanganate (KMnO₄) impregnated activated carbon from Airpura or AllerAir. You'd have to contact the respective company first to specify this. KMnO₄ works in part via redox (reduction oxidation) reactions by breaking down certain gases. This can be problematic in unknown and/or highly complex air chemistries where resulting gases may be problematic. It can also off gas as it saturates or loses efficacy.

AirDoctor doesn't have much activated carbon in their filters... definitely not thick. You're right about IQAir, specifically the GC series purifiers. AllerAir and Airpura purifiers tend to have heavier carbon/sorbent media canisters for the money.

I feel for you, OP. I am an allergic-to-everything person to the point that I've needed to move homes to get away from paint, varnished wood, carpet, etc. The biggest trigger for me, though, and maybe for you is any centralized heating and cooling system. The systems' filters don't matter - the room's unfiltered air is also being blown in your face. I haven't found a purifier that can offset this problem. I don't use ACs and all my heat is water-based or electric. I experimented with Dyson - if it's the model that provides heating or cooling, there is a chemical in the device that can cause reactions. You can also be sensitive to the material in any carbon filter, like coal. The imperfect journey continues, but I ended up getting a custom purifer from Aller Air and I use it in the same room as a Coway HEPA. One for gas and chemicals, one for particulates. It still doesn't save me completely from my dusty old building, but I can now be confident that it's the only issue. Good luck!

I bought the airmedic pro 6 with vocarb filter which is rated to 1200 sqft and has 28 pounds of carbon impregnated with potassium permanganate. The performance is mixed. Placing the air intake on the bottom of the unit is a sub optimal design, it doesn't draw in air efficiently like units that have side 360° intake. Anything above medium is unbelievably loud. I run it in my bedroom, and on the days the Volcano erupts and there's a ton of SO2 in the air I'd say it improves indoor air quality by about 50% Meaning I still feel the effects but not as severe. Because my windows are somewhat leaky and the air intake is weak and inefficient it simply can't keep up with the pollutants that are constantly entering the room. Was it worth $900? Just barely.

Regarding your comment about potassium permanganate potentially off gassing as it saturates and loses efficacy, can you please elaborate? I own an Allerair pro 6 unit and opted for the Volcanic Gas carbon mixture that is impregnated with KMnO4, and am concerned as I run it in a room where my twin infant girls sleep. How will I know if it is offgassing? Will the super Hepa filter surrounding the carbon filter catch the particles if they are released (guessing not, given gasses require carbon for removal).

A few months ago I bought the Allerair airmedic pro 6 with vocarb filter which is rated to 1200 sqft and has 28 pounds of carbon impregnated with potassium permanganate. The performance is mixed. Placing the air intake on the bottom of the unit is a sub optimal design, it doesn't draw in air efficiently like units that have side 360° intake. Anything above medium is unbelievably loud. I run it in my bedroom, and on the days the Volcano erupts and there's a ton of SO2 in the air I'd say it improves indoor air quality by about 50% Meaning I still feel the effects but not as severe. Because my windows are somewhat leaky and the air intake is weak and inefficient it simply can't keep up with the pollutants that are constantly entering the room. Was it worth $900? Just barely. Wondering if Airpura will work better with 360 degree intake?

Most home-grade pufifiers are geared towards removing particulates. Such purifiers don't remove odors unless they are specialized units with large carbon canisters. The ones you are considering will move the odors around, and this may help dissipate it (just as any fan would), but they do not contain nearly enough carbon to remove odors. While these products claim to remove odors, these claims are, at best, *heavily* inflated. An example of a unit that will remove odors (and volatile organic compounds, in general) is the AllerAir AirMedic 6 with a 40lb carbon canister filter. This is a large, expensive, loud unit, that uses a lot of electricity, as is the case with all purifiers that can effectively remove odors (as they have to move air through a deep carbon bed, which requires a powerful motor to do so).

None of the consumer grade air purifiers are BIFL. For most, I recommend the Coway 1512AP. It's a good design, with excellent efficiency, acceptable noise levels, good airflow, and there are plenty of quality aftermarket filters available for it, which significantly reduces the operating costs over multiple years. Depending on the size of the space, just buy multiple units. (For optimal performance, each covers about 350-400 square feet.) Multiple smaller units are more effective and generally cheaper than buying one very large unit. If you want BIFL, AllerAir products are BIFL, but they are super expensive, have very high operating costs, are loud, are not energy efficient at all, and they are geared more towards those looking for VOC control in addition to controlling particulates. This is a specialized product, but it uses commercial components due to its fundamental design, and such components make this a true BIFL product. Also, you can build your own purifier for cheap. It's called a Corsi-Rosenthal Box, and it will do exactly what any of the consumer-grade purifiers do, which is removing particulates (Note--***none*** of the consumer grade purifiers contain enough carbon \[or use the correct carbon layout\] to control VOCs or remove odors through adsorption.)

Mine is out of reach for most people, but im about to have 3u3 in the middle of wildfire season, so i had to invest in what actually works on the smoke. Allerair Airmedic Pro 6. They are *very* expensive. But wildfire smoke requires at minimum 20lbs of carbon. Mine has 34lbs. For a normal, everyday animal hair/allergens model, Oransi Airmend is great.

AllerAir. They come at a variety of sizes and price points but all have the same basic design. Even their smaller model does a good job. They can be pricey and it's an investment. They do not make pretty, electronic units with digital readouts or app connections. This is a metal housing (painted white) with a very large, heavy filter inside, and a motor with a mechanical fully adjustable rotating speed dial. I've had good luck with longevity of the filters and I am still on my original filter after a few years. The large, heavy filters take care of some toxic gases as well as your typical everyday allergens, dust, and pollutants. It's a different breed of filter than you get from Winix and Coway and the others who make units with HEPA filters. Their major competitor is Austin Air. The disadvantage of Austin Air is their motor only has three speeds and the medium and high speeds are loud. I had terrible luck with Austin Air filters not lasting long.