air purifer

Hello, 1) So i live in Mumbai and get a lot of dust in my room even with windows/door closed most of the time. My room is small about ~150sqfeet. I also get asthma in winters and allergy from time to time. Any recommendation for a simple air purifier that does the job + easy parts availability...

Hi guys, I live in Delhi and those who live in Delhi must be aware how the air quality becomes in winters. I am looking for an air purifier and have a budget of around 15k. My house size is 600 sq ft and is a 2 BHK. I have no experience with air purifiers so posting here for some input.