Austin Air HealthMate Standard Air Purifier, Black - Advanced 4-Stage Filtration HEPA Air Purifiers For Home with Activated Carbon & Zeolite - Ideal as Air Purifiers for Bedroom, Model B400

put this in a room with a 3d printer and its made a HUGE difference in the PM2.5 when printing. Love the improved air quality.

My neighbors like to burn wood. This would be fine with good lumber and a well maintained fireplace, but no. The idea was to save money and they were burning anything that would burn. The proof of this wisdom was the yellow walls in their house which were once white. So I became an air purifier expert of sorts. Not scientist, but also not a "trusted reviewer" with a website of Amazon links.There are two things an air purifier can do for you. (1) It can filter out small particles in the air. This is an easy and relatively inexpensive thing to do. Any unit with a HEPA filter wil do this. Get the biggest one you can, that does not have an ionization feature and you're done. I'd reccomend the Honeywell HPA 300. It moves a lot of air, can be placed near a wall (nothing goes in or out the back) and filters are reasonable. You'll be impressed at how much dust this thing traps.Item #2 is where BIG problems come in. Whereas a $99 purifier will catch dust, viruses, pollen etc., it will do almost nothing about noxious, poisonous fumes. Yes, smoke has particles of soot, ash, etc, but this dirt is carried along by VOCs, aka poisonous gases. Same as car exhaust, fresh paint, bug spray and so on. And I'm sorry to tell you, these gasses, like carbon monoxide and formaldehyde, sail right though a HEPA filter. The solution is charcoal filtration. Lots of it. Pounds of it. And for some reason, this is very expensive. A charcoal impregnated sheet or screen will work for about an hour during a fire before it becomes saturated and worthless.The IQ Air Multigas units have the charcoal needed to do the job. But besides the cost, they emit their own smell. This small is a lot nicer than smoke from a wildfire but it's still there and shouldn't be. The other popular high end units, Blue Air do not appear to have enough charcoal to do the job but I have not tried one so I can't say. The obscure Air Pura can do the job and is priced accordinly.And then there's the Austin Healthmate Pro. The Ausin is utterly no-frills but it has a monster charcoal filter and as far as I can tell, does not emit any odor of its own. Everything else about the Austin is disappointing; it's noisy, and the metal housing makes it even more so, the power cord is annoyingly short and with no place to store it, and if you want to mess with timers, Bluetooth connections or Alexa, you won't find any of that. But this is a real purifier; just a fan and a filter and most of the money has gone into that filter.I don't know if it's the high cost, or the assumption that people just want a dust filter, but even reputable sites like Consumer Reports and Wirecutter struggle with the cost/benefits of the few, really good air purifiers. But when your phone says "Air Quality Hazardous" what makes it hazardous is VOCs. The vast majority of air purifiers--certainly the affordable ones--will not lay a glove on these gasses. In summary: Buy a cheap air purifier and your eyes will burn from the smoke, but you won't have to dust as often.

It is hospital grade pure air and I have it and two other winix air purifiers. My house is pure air and I live on two acres in a forest with clean air....I am 83 and have NO BREATHING PROBLEMS. I only wish I had bought them sooner.

********************* 2ND UPDATED REVIEW ***********************I actually purchased two of these filters, and the second was given as a gift. Well, after about 1 year, the filter completely stopped adsorbing any smells whatsoever. The person was smoking indoors, so I'm sure they just exhausted the carbon. But given how expensive these filters are, and how cheap activated carbon is, this is not a sensible solution to replace the $200 filter every year. To be honest, I thought that 15 pounds of "activated carbon zeolite" should last longer than a year even when exposed to smoke. It would be preferred if the carbon section of the filter was separate and could be replaced independently, because the HEPA portion has a lot of life left in it. I'm still disappointed in the performance of this air filter given it's high cost. This unit should be around $200 total, and then it would be a fair value, with replacement filters costing $70-100. Truly, this is just a low-tech fan with a clunky 3 speed knob, steel frame, and a filter inside. At least it still catches the dust and hair.********************* UPDATED REVIEW ***********************This was an awesome filter for while it lasted. But after 1 year of use in a regular household, the air coming out of it STINKS like vinegar. At first, I though someone spilled some in the room. But after putting my nose to the air coming from the machine, I can clearly smell "sour" or "vinegar" coming from it.I have NO idea how this is even possible, since carbon effectively traps all smells. That makes me wonder if this unit has real, activated carbon in it at all??? I opened it when I first received it to check the filter, and it is indeed heavy and appears to be black carbon. But how is it possible for carbon to EMIT smell?Something is seriously wrong, and for $550 this is absolutely unacceptable, and a pure waste of money. The replacement filters for this are a few hundred each, NOT worth it at all.VERY disappointing to only last 1 year in a clean, non-smoking house.I guess I'll have to repurpose this machine. I'll probably try to turn it into a humidifier instead.BE WARNED!********************* ORIGINAL REVIEW ***********************The Austin Air is a no frills air filter. It has absolutely no smart functionality, no sensors to auto adjust, no scheduling, no timer. Just off, low, medium, and high (aka extreme).On low, I can BARELY hear it, while it still flows a considerable amount of air.On medium, its cranking really good and is still tolerable, but it can be a bit nerve racking as it makes you have to talk louder to hear someone in the house.On high, aka EXTREME, this thing is like a jet turbine. It blasts out so much air, enough to cover what they claim to be 1100 sqft, which is the largest consumer air filter, by filtration volume, I found on the market. However, you would not leave this on if you were in the room. Its as loud or louder than a large vacuum cleaner. But every night I crank it on high, and the air quality in my room has significantly improved. The AWAIR air quality monitor used to always say 65-75 for our quality score in the main room. Now it always reads between 88-94. That is a significant improvement. Less than 2 micrograms per cubic meter of dust.It would be nice if it wasnt SO basic though. A schedule would be amazing, and an "auto" feature would be awesome too. Best of all, there are ZERO leds so it will not make the room turn into a disco party with colorful leds, like other units do. And, I got this on super sale for only $296 and another for only $346, not sure how, but I snatched them as soon as I saw the price. At a normal price of $550, it would still be worth it compared to other models on the market.They are awesome, I gave one to a family member with cats and it has helped them so much. There are just clumps of cat hair sticking to it after only a week. Simply vacuum the sides and keep it running. There is a prefilter inside the unit which could be beaten/washed if you wanted to prolong the life of the primary HEPA filter before you have to replace it, since replacements are around $200 from what I saw online.I recommend this unit.

Doesn’t work as well as I thought it might. Still have dust accumulating after a day following dusting.