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Allergy Purifiers LLC offers only the highest rated, most effective
 HEPA Carbon Air Purifiers and Filters for Allergy Relief, MCS,
Asthma Relief, VOC, Chemical and Odor Removal.

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Superior air filtration technology

How the Allerair High Efficiency Air Filtration system worksAllerAir Air Filtration System - Cut-away air purifier

Air purifiers that use a 4 phase filtration system:

As the air passes through them, they are:
  • Pre-filter,
  • Mass Activated Carbon Bed (MAC-B™) filter,
  • 2 anti-microbial filters
  • HEPA filter.

1) Prodense, cotton or tar-trapping pre-filters

Traps larger dust particle and is easily removed and cleaned with a vacuum cleaner. It acts to stop the larger particles such as dust and lint from clogging the other filters.

2) The mass activated carbon bed (MAC-B™) filter

Adsorbs gases and odors. (Adsorb: no it’s not a typo. This is the process by which activated carbon captures gases and odors.)
Most off the shelf air cleaners have a few token ounces of carbon sprayed on the pre-filter. This is only sufficient to capture a small amount of the noxious gases and odors in the air and for only a short period of time.
The MAC-B carbon filter has pounds of activated carbon (from 7 to 160 lbs.) that will trap 90% of gases and odors that pass over it and will continue working for many months before needing to be replaced.

3) The 2 anti-microbial filters (non anti-microbial on MCS units)

Trap the airborne microorganisms that pass through them.

4) The HEPA filter

Traps the airborne particles. These filters were developed by the Atomic Energy Commission to trap radio-active particles. They can capture 99.97% of particles as small as 0.3 microns. That is as small as some bacteria.

The power of activated carbon

Activated carbon is the only safe, cost effective way to trap noxious gases and odors

What it does and how it works.

Activated Carbon Filters Activated carbon is carbon that has been treated with oxygen to open up millions of tiny pores between the carbon atoms.
There are so many of these that one pound of activated carbon has a surface area of 60 to 150 acres.

The technology used in military gas masks

Activated carbon is the substance that keeps military personnel safe from poisonous gases. It is also used for water filtration.


Adsorption is the process where certain chemicals are attracted to activated carbon and then bond to it. The millions of pores in the activated carbon provide an enormous surface area to trap these chemicals.

The bigger the filter, the more chemicals it adsorbs and the longer it keeps on working

Activated Carbon FilterAn activated carbon filter acts rather like a sponge. When it is full it can adsorb no more. The more carbon you have the more you can adsorb before changing the filter. AllerAir MAC-B carbon filters have from 7 to 48 lbs and will last from 9 to 24 months. Activated Carbon - a few ounces are not enough

Most off the shelf cleaners have only a few token ounces of carbon sprayed on a mesh.

It's not enough to have any useful long term effect.
All AllerAir Models are Available:

AllerAir Air Tube & Air Medic Air Purifiers:

AirTube AirTube Jr. AirMedic Exec AirMedic Vocarb

AllerAir 4000 Air Purifiers:

4000 Exec 4000 Exec UV 4000 Vocarb 4000 DS

AllerAir 5000 Air Purifiers:

5000 Exec 5000 Exec UV 5000 Vocarb 5000 D 5000 DX
5000 DS 5000 HE 5000 MCS 5000 D-MCS 5000 H

AllerAir 6000 Air Purifiers:

6000 Exec 6000 Exec UV 6000 Vocarb 6000 D 6000 DX

AllerAir 600 Air Purifiers:

600 Exec 600 Exec UV 600 Vocarb 600 D 600 DX 600 Allergy

AllerAir 9000 series Air Purifiers:

9500 Restorator 9400 CM 9600 All Purpose 9600 Medical 9700 Dental 9000 Welding


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 reproduced without written consent from Allergy Purifiers LLC; o3ozone.  All rights reserved, Dave Lowen, Doug Bracken &
Allergy Purifiers LLC, o3ozone 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
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IQAir HEPA Carbon Air Filter Allergy Purifies for Asthma MCS, VOC, Odors, Hospitals, clean rooms, dental offices, and anywhere the maximum degree of filtration is required. offers a large selection of purification products.

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