The following applies to situations where the antagonist is in moderate concentrations.
Bacterial and Viral Filtration particles one micron and larger filtration is 98% or N98
For vaporized chemicals (molecules much less than one micron) filtration is 95% or N95
The Air Aid Mask is a standard surgical mask to which an advanced activated Carbon filter has been added. The activated Carbon increases the filtration of particulates over the traditional 95% of a medical mask to 98%. The increase in filtration of chemicals is more dramatic going from close to zero to 95%. The effectiveness of the standard medical mask should not be under rated. It should be remembered that Medical Doctors still use this mask when they treat Ebola patients in West Africa and the Ebola virus is less than one micron in size.
Live chemical tests have been conducted by the State of Utah. Such tests are far more informative than laboratory tests since they are conducted with volunteers who then subsequently report effectiveness. That report is available upon request.
There are other factors that must also be considered the most important being will an individual have a respirator with them when a terrorist attack occurs. It is a well known fact that the number of police officers, military base guards or private citizens that carry the bulky obtrusive gas mask with them at all times is extremely small, certainly far less than 0.01%. Given then that an attack is usually an unforeseen event, most of these individuals will be inoculated or poisoned before they race back to their car, jeep, barracks or home and apply their gas mask. In terms of probability theory then we might well conclude that there is only one mask that addresss this critical shortcoming and that is the Air-Aid Emergency Mask. This mask is a very small, inexpensive, shirt pocket portable device that allows a person to always have an escape mask at hand, despite the unforeseen. It will significantly reduce the chance of becoming infected or poisoned, because it is composed of the same filter mediums as a gas mask. The difference is that rather than pulling air through a narrow restriction, as in a gas mask, the wearer breaths through a large surface area thus minimizing leakage from the edges as experienced with a conventional respirator. It does not reduce the probability of infection or poisoning as much as a properly fitted gas mask would but then a gas mask would seem to be a rare thing in times of emergency. Factoring in the small probability (approaching zero) of an individual actually having a properly fitted gas mask as compared to the probability that they would have an Air Aid Emergency Mask with them yields a combined probability that substantially favors the Air-Aid Emergency Mask as the best emergency option for the average policeman, soldier or private citizen.
Brent Anderson, Former Weapons System Analyst for Joint Chiefs of Staff and owner of:
Dynamic Energy LLC
1104 East Alpine Drive
Alpine, Utah 84004
801-756-8002
pba@xmission.com