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This year, in many cities across the country, including Delhi-NCR, people are installing air purifiers in their homes to combat pollution. While keeping an air purifier in the room certainly improves air quality, the air has become so toxic that even air purifiers are failing. It's worth noting that air purifiers can only purify air to a certain level, after which they too begin emitting toxic air.

Air is no longer breathable
These days, the AQI level in Delhi-NCR has surpassed the dangerous level of 350. This air is so toxic that prolonged breathing can cause serious illness. Due to the high pollution, even indoor air purifiers are failing. This raises the question: how much polluted air can an air purifier clean? Let's find out...

At what AQI does an air purifier fail?
Most home air purifiers are designed to filter particles like PM2.5 and PM10. However, if pollution levels are too high, air purifiers fail to clean the air.
If the AQI is between 400 and 500, regular purifiers clean the air very slowly.
When the AQI reaches above 500, which is a very harmful level, most machines fail.
In this situation, PM2.5 levels often reach 300–400 micrograms per cubic meter, and the purifier loses its filtration capacity.
In such polluted air, the air purifier's exhaust air has an AQI of 100–150, which is harmful even after filtration.

The biggest reasons for air purifier failure (Reasons of Air Purifier Failure)
When there is too much dust, smoke, and toxic particles in the air, HEPA filters quickly become clogged. This reduces the machine's airflow and reduces the supply of clean air. If the filter becomes clogged quickly, the purifier cannot clean the air, and the AQI level in the room cannot be reduced. If the room is not properly sealed or the doors and windows remain open, the air purifier will not function at its full capacity.

How to Maintain an Air Purifier
To avoid this situation, you will need to maintain the purifier regularly.
Clean the filter every week. If the air still smells bad after cleaning, replace the filter.
Keep the room completely closed to prevent polluted air from entering the room.
Also, provide ventilation to keep CO₂ levels under control.
If the room is large, use two purifiers.

Disclaimer: This content has been sourced and edited from Amar Ujala. While we have made modifications for clarity and presentation, the original content belongs to its respective authors and website. We do not claim ownership of the content.