IQAir - GC MultiGas NE

Second this brand – it's best of the best imo! I've got the IQ GC MultiGas, and the difference it makes to the air quality is insane. I had some noticeable chemically smells in the house and the carbon filter sucked it right out.

I invested in an [IQ air](https://www.iqair.com/us/products/air-purifiers/gc-multigas). It’s pricey and a beast of a machine but I live next to the freeway so it feels necessary.

I would overall aim to address the mold problem and deprioritize VOCs unless they’re actively a problem. So that would mean maximizing the amount of hepa filtration within your budget. Ideally a purifier for each bedroom and either a larger unit if the living room / kitchen is an open concept or just do two in that large space. For carbon filters, IQAir is very impactful if you have the budget for the GC Multigas. There are other recommendations like Austin Air. A lot of people don’t feel like the carbon filter has a significant impact, but I know a few chronically ill folks who say it makes a meaningful difference.

Unfortunately I think the activated carbon stuff is just very expensive and I don’t see a way around that, outside of the DYI option. Just to note the Oransi has about 3lbs of carbon in its carbon filter. The IQAir has 12lbs and I believe the AllerAir has even more. If you want to get 4 Oransi’s I can see an argument for more cleaning power due to multiple units but then the price is almost the same. I also think the Oransi replacement filters end up being more expensive on a dollar per lbs of carbon than the other brands you listed I also believe the IQAir GC Multigas and Oransi both have carbon treated with Potassium Permanganate Impregnated Alumina which increases effectiveness in adsorbing some VOCs and pollutants

Absolutely. I have an IQAir GC Multigas

We rec’d the IQAir Multigas GC yesterday and I ran it in the bedroom all night without no problems. In this short time, the unit has already significantly reduced the overpowering VOC smell in my bedroom and bath. It’s a big unit, it’s as tall as my hip! I have the fans turned all the way up and it’s not noisy to me but I also don’t mind that sound of a fan going, others might not feel the same. So far, I’m super impressed and think it was worth the cost.

I agree, I have an IQAir multigas GC and an Airpura G700. They both work incredibly well and I highly recommend both, but I prefer the IQAir due to less noise and I love to use it with the App. Don’t get me wrong, we have the Airpura cranked in the living room during the wildfire smoke high AQ days and it works incredibly well.

We just moved into a new build that absolutely reeked of VOC’s, and I’m super sensitive. We bought them specifically to tackle wildfire smoke and VOC’s. We put the IQAir in the bedroom because it’s quieter, and the placed the Airpura in the living room/kitchen which smelled the worse by far. I’d say within less than a week 99% of the VOC smell was gone. The Airpura is a mechanical beast and does the job extremely well, I feel like it did the heavy lifting of removing the VOC’s. Just know that it’s louder, and only has an on/off button and a dial to adjust the intensity, that’s it, no bells or whistles. I feel like it’s more for special events like VOC’s or wildfire events rather than a daily use air purifier.

Something like the Cleanairkits if you can get furnace filters where you live or you can consider the airfanta 3 pro. I don’t think CleanAirKits ships to India though but you could make your own since it’s pretty DIY. They both are low cost and offer excellent cadr without being loud. Hepa filters are super loud at their high setting which you need to get the high cadr values. If they are on their low setting, they don’t really do much. If you want, the iqair gc multigas would be the most expensive, nicest air purifier that will offer elite performance. The unit costs a ton though but you get what you pay for. Since it’s a big unit, you could run it on a lower setting so it won’t be so loud and you would still get good performance. The 12 lbs of carbon in it will scrub out harmful gases you might encounter where you live. Their CEO breathed out of the air purifier in a sealed box with a tear gas grenades going off as a marketing stunt haha.

I use IQAir GC MultiGas and it works great. You probably need multiple of those. One for each room and living space. If you want something that doesn’t take space, you can consider integrating IQAir PerfectPro as part of your HVAC ducting. Mind you, the filters are astronomically expensive, and you will need to replace them way more frequently than what’s suggested.

I ordered the IQAir MultiGas, it’s been running all day, still have a crazy headache and sore throat. Feel like death. How are we going to live like this??

Ah crud, bought another MutliGas too. Both have been running all day, one in the living room, one in the bedroom. Headache and sore throat gone at home, but comes on when I’m outside for 10 mins.

If money is out of the question. IQ Air Multigas.

That IQAIR model is a good one for a mixture of particulate and VOC filtration. You can also look at other companies like Austin Air, Aller Air, or essentially any other "steel can" style air purifiers. They'll come with tens of pounds of activated carbon and HEPA filtration but they are loud and expensive. But they are effective.

Pro X does have activated carbon but not a lot. Just a few lbs and they're connected to the HEPA filters meaning if you want to run it under ideal circumstances you'll have to replace the filters when the carbon is full which happens way faster than the HEPA portion. That's one of the nice thing about the IQAIR unit is that it has separate filters. However the PM2.5 particulate is the most immediate danger from the smoke and the Pro X will absolutely breeze through filtering that. It'll probably do ten or more air changes per hour in a room that small.