The Environment Pollution (Prevention and Control) Authority has declared a public health emergency in the Delhi-NCR region, banning construction till November 5 and bursting of firecrackers throughout winter. Moreover, Delhi schools have been shut till Nov 5 in the wake of the highest-ever pollution levels. On Friday, Delhi's air quality index (AQI) was 533 - this is the worst-ever at this time of the year. But, there is a section of people that has to step out of their homes every day to go to work and other important matters. So, what to do in such cases? Because we can't leave jobs and other important work! In this scenario, the best way is to purchase a pollution mask and then step out. But, the big question is how to choose the right mask? What is best suited for you? Here is the guide explaining all you need to know about pollution mask:-

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Is your pollution mask able to filter out pollutants?

While buying a pollution mask always ensure whether it has the capability to filter out pollutants. Your pollution mask must be able to filter out pollutants like suspended particulate matter (PM 10 & PM 2.5), and harmful compounds like SO2 (Sulphur Dioxide), Carbon Dioxide (Co2), O3 (Ozone) and NO2 (Nitrogen Dioxide). You can find these details in the description of the products.

Percentage of pollutants your mask can protect from?

One should choose the pollution mask in accordance with the levels of pollution in his/her area, and then can buy N-99, N-95 or N-100 pollution masks. Here 95, 99 and 100 reveals the percentage of protection your masks give you. Means, N 99 can filter out 99% of the pollutants.

Fitting

Always try to opt for pollution masks with the right fit. If possible go for adjustable straps to avoid poor fitting issues. Also, always give priority to the utility of the mask. For example, always choose the pollution mask with large air intake valves for enhanced protection.

Is the quality of your pollution mask up to the mark?

You should always check the quality of the mask, especially if you live in Delhi-NCR. You may check if your pollution mask brand follows international production standards like Personal Protective Equipment by CE and EN 149:2001+A1:2009 FFP2 R (R stands for recyclable) or certification from the U.S. National Institute for Occupational Safety and Health (NIOSH) (or EN 149 FFP2 for Europe).