In the United States, pneumonia is the sixth principal cause of death. Pneumonia is a respiratory condition where viral infection is present on one or both lungs. Usual causes of pneumonia are viruses, bacteria, or fungi. Each year, more than 3 million people in the United States contract pneumonia. More than half a million patients get admitted to hospitals for treatment. Most patients do recover from the illness, but approximately 5% will result to death.
Some people may still be unaware, but the quality of air inside homes or offices may even be worse than the air outside. Reports say that indoor air quality can be 10 times worse than the air outdoors. This can be attributed to the fact that contained and tight spaces enable more pollutant build up than open spaces. And since people spend most of their time indoors, health risks caused by pollutants and degraded indoor air quality are becoming a huge concern.