Meningitis is a disease caused by the inflammation of the protective membranes covering the brain and the spinal cord. While most people with meningitis recover, it can cause serious complications, such as brain damage, hearing loss or learning disabilities. A vaccination is the most effective way to protect yourself against certain types of meningitis.
Primary & Secondary pollutant. Definition: A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.
The ionizer and the air purifier can help remove particles that can lead to serious diseases and cancer. Both of these devices offer similar features and benefits. So, what is the difference between air purifiers and ionizers? Air Purifiers. The working principle of the air purifier is different from that of the ionizer. The air purifier allows air to pass through its filter system which will help trap pollutants like dust or smoke.