The World Health Organization (WHO) has prepared new Global Air Quality Guidelines. It is an updated version of a document that came out in a previous version in 2005. The recommendations have changed since then. Scientists found that even the lowest concentrations of air pollutants cause harm to the body, so the maximum permissible concentrations have been lowered.

In the new Global Recommendations, WHO experts give maximum permissible concentrations for such common air pollutants as ozone, sulfur dioxide, nitrogen dioxide, fine particulate matter (PM 2.5, PM 10).

In particular, the document presents studies of the negative impact of particles PM 2.5 and PM 10 on human health. Penetrating into the lungs, they tend to cause cardiovascular and respiratory diseases and even cancer. Recommendations call for controlling the concentration of these particles in both outdoor air and the air people breathe indoors.

Air quality and the field of energy efficiency share common features. To reduce the risks associated with high concentrations of PM 2.5 and PM 10 particles in the air, scientists advise reducing the use of fossil fuels and following practices that help reduce hazardous air emissions.

Modern air purification systems help combat high concentrations of PM 2.5 and PM 10 particles at the household level. The PRANA AIR CLEANER PRO air cleaner cleans the air through a multi-step filter system. The charcoal, HEPA, antibacterial filters infuse the smallest microorganisms and dust particles, and the anionic cleaner helps reduce dust concentrations in room air.