AirMed 3 Vocarb

My experience with an allerair unit with vocarb filter was terrible. It seems highly variable in how people feel about this brand from reading comments online. Essentially the unit I bought will never operate as efficiently as they advertise - will never effectively clean the air at a reasonable rate. They admit it but refuse to take the unit back without a 25% restock fee. Their equipment is misadvertised and they don’t deny it The actual CFM is much lower than advertised but the real kicker is the decibels was 30% higher than the max advertised and way too loud to operate at full speed. Meaning actual operation was again reduced significantly because it has to run at a much lower speed to be able to even be in the same room Airmed 1 with vocarb

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.

For best VOC removal, such as mycotoxins, you need a lot of absorbent media. Checkout Airpura, Allerair, Austin, IQAir. All are in the $1k range. I'm unsure whether any filter will eliminate mold sensitivities. Did see an improvement when upgraded my Austins with Immunity Machine filters but molds still aren't totally controlled. There are clinics which can treat mycotoxin sensitivities. Can be quite expensive.

Allerair is excellent as well and cheaper than many if not all of the others with as good or equal in build and performance.  

I have a couple allerair I have been happy with. They have some of the largest carbon filters, work great for smoke and pet odors. I have one in a bedroom with a cat box. If the cat uses it at night the smell is gone in minutes. Allerair, airpura, Austin air are similar units. Metal cabinet, a switch, a fan and a filter. Very little to go wrong.

Check out Allerair they have models with large carbon filters specifically for wild fire smoke. I believe they are also made in Canada. Airpura is another similar one not cheap but I’m happy with the ones I have. I’m in Wisconsin and we have gotten a lot of smoke this year and don’t smell anything inside.

AirOasis is really good. It's one of the few purifiers that I have felt a noticeable difference in the air, despite trying almost every brand on the market now. I've been very impressed with their customer service also. If you're in a high VOC environment, you need a purifier with a very thick carbon bed in the filter like some Austin, AllerAir, and Airpura models do. I have an AllerAir in addition to the AirOasis unit for this reason.

I can only speak from experience. I have purchased 3 AllerAir purifiers and they seem to be mostly metal. I'm guessing parts of the motor may be plastic but I can't really see inside to check. There is no outgassing whatsoever with the ones I've purchased, so I'm happy with that aspect of them. Downside is the unit is very barebones, meaning there's no mechanism that tells you when to replace the filters, so you have to keep track of that yourself.