Many people worry about outdoor air quality. All of the allergens and pollutants which you can find outside also present inside your car. Apart from these aromatic hydrocarbons that come from various interior components and particulate matter from brakes cause health problems. You can find the study here Car indoor air pollution - analysis of potential sources.
One solution to all these problems is car air purifier. Most of the car air purifiers use fans to circulate the air through a filter. In some cases, they also act as a ionizers. It helps to charge negative oxygen ions to normal levels. This process has many health benefits like removes bad odors, prevents dust particles from being inhaled directly into the lungs and improves breathing.
Filters in Car AIr Purifiers:
1. HEPA Filter: These are most effective in removing 99.97% of airborne particulates as small as 0.3 µm but it can not filter out the gases and odor.
2. Activated Carbon Filter: It helps to remove harmful chemicals, gases, odors and volatile organic compounds (VOCs) from the air.
3. Ozone Generator: It works by emitting ozone that helps to remove harmful gases effectively. Do not use this type of air purifier because it produces ozone which is harmful for for your health if you have respiratory conditions such as asthma, bronchitis or COPD.
4. Negative Ion Generator: It works by generating negative charge into air which attach to dust particles, mold spores and pollen suspended in the air which then attach to the car surface.