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When faced with the dangerous task destroying lethal biological and chemical weapons near a populated area, the United States government looked for an air cleaning system to protect it's citizens. Since this was the first time the government incinerated nerve agents like sarin this close to a populated area, they were very careful to prepare for any accidental releases of these deadly compounds. Residents of Calhoun County were provided with an Austin Guardian 1 to protect them from any airborne threats during the destruction of the stockpiles. The Guardian 1 was specifically designed and manufactured by Austin Air Systems, maker of the world’s best air cleaners.

The following report was issued:
Test Report to the US Army Soldier, Biological Chemical Command
In the wake of the tragic events of September 11, 2001, and in response to the resulting concern about biological threats to US citizens, we have compiled some information on the effectiveness of the Austin Air HealthMate Air Cleaners in dealing with airborne biological threats. The following is a summary of an April 27, 2000, report commissioned by the United States Army entitled, 'Test Report for the System Effectiveness of Home/Commercial Portable Room Air Cleaners.' The purpose of this test was to determine the effectiveness of commercially available air cleaners at removing contaminant vapor (simulant) from a sealed room. The reduction in the amount of vapor contamination after the use of the air cleaner was measured. The Austin HM400 reduced the vapor concentration by 90% in less than 35 minutes. Over 100 units were studied.

The Austin HM400 the was amongst the most effective of the commercial filter units in reducing the simulant vapor dosage within the test room.

Military carbon cloth (the same kind used in bio/chem suits) and activated carbon combine to adsorb hundreds of harmful gases and vapors. This filter design is unique to the Guardian 1 and provides unparalleled protection.

The addition of the Guardian 1 to Shelter in Place kits provided to residents of Calhoun County ensured that these kits far surpassed protections recommended by government agencies to create a Shelter in Place.

When a building or room is tightly sealed, contaminated outside air can still enter. The Austin Guardian 1 will reduce and eliminate the hazard of these vapors. We are very pleased that the Austin Air Guardian 1 was chosen to protect American citizens.

In the aftermath of the September 11th attacks, Austin Air was there.
In the months following the collapse of the World Trade Center (WTC), some Manhattan residents with asthma, reported that their asthma worsened. When the Twin Towers fell they released tons of airborne contaminants containing asbestos and other harmful particulate. Austin Air cleaners with High-efficiency particle arresting "HEPA" filters were distributed to remove the dust and harmful asbestos. The Austin Air cleaner removes 99.97% of harmful particles, including dust mites, mold spores, pet dander, allergens and even anthrax spores.