A system and method for detecting the presence of submicron sized particles in a sample taken from the environment. 5 to about 10%, by weight, of an interpenetrating polymer that is a co-polymer of polyurethane and a polyacrylic polymer. The thermal expansion coefficient of the material forming the third and fourth holders is no more than that of the material forming the first and second elastic members. In the case of an imminent endangerment to the surroundings, control is not transferred to the driver. The data is edited to redact any data that is duplicative.