IQAir - GCX MultiGas

I've used Levoit multiple times for a more economical version, but I love my IQAir GC MultiGas XE (I have MCS) if you can afford it.

Get one Smart Air Blast Mk II (tall) with the charcoal filter (3 lbs). Replace the charcoal filter as often as budget allows (it’s separate from the HEPA). Run it on high 24/7 for maximum CADR. In addition, run an IQAir GC MultiGas XE or GCX MultiGas XE with one of each canister (they hold four total). You will likely have to purchase each type as a four pack. Carbon VOC Canister • High-capacity activated carbon • Best for general VOC removal and chemical fumes Formaldehyde Canister • Impregnated media optimized for aldehydes (especially formaldehyde) • Includes potassium permanganate and other specialized substances Ammonia Canister • Media specifically designed to capture ammonia and amines Acid Gas Canister • Targets acidic gases like hydrogen sulfide, sulfur dioxide, etc. The canisters can be mixed and matched for customized filtration. This is rarely done with the GC platform, but I suspect it’s more commonly done with the GCX platform, which is often used in more industrial or lab settings. Run it on low/medium (Speed 2 or 3) for increased dwell time. I would contact IQ Air for more tailored advice given how expensive it is.

Thanks for the great tips! The Airpura C700 DLX does look interesting. My biggest problem with Airpura is a complete void of reviews or testing. Do you have any direct experience with them by chance? I'm leaning heavily IQAir mostly bc there's more reviews and they are mostly positive. I know VOC's are hard and expensive to measure but I'm shocked almost no online reviews even do basic VOC tests using airthings or other sensors. I plan to post my 30 day airthings VOC chart before and after I purchase an air purifier to show some sort of evidence if it does anything. Looking at this chart for my levoit, it's very clear that it's great for PM but useless for VOC's. I would think the internet would be covered in tests like this but there is near zero data out there. This makes me very suspicious that trying to combat VOC's is a hopeless marketing scheme to upsell expensive carbon filters. Any company that showed off real world results would have a huge advantage, but none do which makes me think VOC capture is not practical. I do run a dehumidifier in my room every night and average 37% humidity which helps with the musty smell. Whenever I'm away on vacation and don't run it the smell comes back. Unfortunately can't get the landlord to do anything about it.

I got the small r414 I think is the model. So far I haven't been able to detect any impact on VOCs. In fact I'm currently testing if it's making my VOCs significantly worse or not on my air things. I much prefer my levoit Everest air for PM. For VOCs that does nothing, but as far as I can tell neither does the Airpura. I'm probably going to try an IQAir instead of a bigger Airpura next, you might want to consider that one.

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.

I have Austins and IQAir MuliGas. The Austins were recommended by a clinic which treats individuals with extreme chemical sensitivities. You want a unit where the fan feeds the filters (1st in the chain) to avoid contamination from the fan itself. No filter is going to eliminate all VOCs.

I have a couple of models: Immunity Machine, Healthmate Plus, bedroom machine. There have been some reviews stating that Austins are slower at clearing a room of particulates. My main concern is VOCs and since I run 3-4 filters in each room that isn't a concern for me. Am now testing the immunity machine. Seems to do a much better job with VOCs, although final results will take a while. What is your concern with IQAair?

Unfortunately the most effective purifiers are not cheap. I bought an AirDoctor because the IQAir was too expensive. It didn’t seem to do anything, so I ended up selling it and buying the IQAir in the end. The IQAir MultiGas was most effective (of the IQAir lineup) against VOCs like mycotoxins last I looked. I supplement with Microbalance EC3 candles

If you looking for filter out dust you need the one has big and powerful fan but if you need one to filter out VOC and a microscopic stuff you better of looking for multi layer filter system with HEPA , I have used Coway for dust and Dyson formaldehyde for microscopic and IQAIR multigas for road traffic pollution next to my apartment!

Have worked through all sorts of filters over the years. Quick answers (just did a longer post to another similar question): A - Dyson, no way B - nothing with an ionizer or anything that tries to sell you on electronic or charged particles. C - the ½ or ¼ inch charcoal filters in most purifiers are worthless. If VOCs are the issue, just open some windows. If you can’t, then check out IQair Multigas, and the Austin Air unit with about 30 pounds of charcoal. D - you have to choose between HEPA (most of those on your list), or medical grade like the IQAir. The later cleans MUCH MUCH more, but they cost 3-4x as much (although their replacement filters last a long time.) Good luck and success!

We have the health pro, the compact, and the multi-gas. Wish we hadn’t the compact (was trying to save some bucks) as the health pro is better. We use the multi-gas near the kitchen. They are all great, but we like the health pro the best. Also, if you are focused on VOCs, then you want the multi gas, or AustinAir makes a great one with about 30 pounds of charcoal if memory serves. Not sure about any of these and Voc’s though. But for particulates, viruses, etc, these units are amazing.

IQAir makes some of the best in the industry - each unit is tested and certified, made in Switzerland. The units are quite large though. I have one per floor and s multigas unit in my garage where my workshop and home gym are

This goes against all advice you may otherwise receive in this sub/youtube videos, but I really find the Dyson BP03/BP04 therapeutic as I recover from mold illness. I had a lot of mold in my home and accompanying lung pain and these dysons are the only thing that give me relief. For context, I also bought the IQ qir healthpro plus and IQ air multigas, and these units were not great at helping my symptoms. I think the main difference is that the dyson actually projects the air and cleans the room whereas many other purifiers might have superior filtering technology but they don't actually get the clean air into the room away from the unit.

I use an IqAir GC, Coway Airmega 400s, and Coway Ap1513. I have invested in these over the years and bought them from wholesale or second hand. They are all heavy-duty purifiers, but anything with a hepa filter will do. Make sure if you are on multiple floors... air purifier on each floor. Make sure it's double the sq.ft of the area you want to filter. If it's not enough.. double up.

Iq Air GC series 12 pounds of activated charcoal $1350 Amazon.

Huh? He’s asking about air purifiers for smoke, VOCs, toxins of any sort. The air purifier I mentioned is hands the best on the market. The one I specifically mentioned is used in ER and surgical areas. It’s expensive but it’s the best tool on the market to get the job done. Life changing for me.