Is an Air Purifier Worth it in Chennai?

I live in Anna Nagar. The road in front of my house is always busy, and no matter how often I clean, a layer of dust settles within 2-3 days. So I end up cleaning my room way too often.

Recently, I stayed in Kotagiri for 15 days. The cool climate was amazing—no colds, no sneezes, not even after drinking lassi! But back in Chennai, even eating something as simple as a banana gives me a cold that lingers for months.

It feels like my body is reacting to the air pollutants here—vehicle exhaust, dust mites, etc.

I’m thinking of buying an air purifier to see if it helps with my allergies and makes breathing easier. Has anyone here used one in Chennai? Did it make a noticeable difference? Would love to hear your thoughts or recommendations.