• nitrogen
  • Each hour, several hundred thousand liters of this polluted outside air pass through the vehicle's ventilation system into the interior, bringing with them particulate matter, nitrogen oxides, and other harmful gases that pose a threat to the health of the vehicle occupants. (mann-hummel.com)
  • carbon
  • Filtration specialist MANN+HUMMEL based in Ludwigsburg has developed effective protection against harmful gases and particulate matter with its MANN-FILTER cabin air filters with activated carbon. (mann-hummel.com)
  • Druffel's Ruth Patrick award acknowledged "her sustained critical contributions on the composition and age of dissolved, particulate, and sedimentary carbon and for furthering the understanding of the processes governing the fate and distribution of oceanic carbon and the important role that the oceans play in global carbon flux. (wikipedia.org)
  • lungs
  • Particulate matter can reduce lung functioning and can cause or aggravate respiratory conditions, and increase the long term risk of lung cancer or other lung disease such as emphysema, bronchiectasis, pulmonary fibrosis, and cystic lungs. (fcgov.com)
  • Area
  • Once the state submits a request to designate an area as "nonattainment" for Particulate Matter (PM), the EPA has 18 months to approve the request. (alaska.gov)
  • system
  • Modern particulate samplers use a volumetric flow control system that pulls air through the particle separator at the velocity required to achieve the desired cutpoint. (wikipedia.org)