Saurabh
With smog descending on us like never before, I've started collating all my knowledge on the subject at one place. I've also restarted air purifier tests and plan to review face masks too.

Those with an understanding of the subject, please fact check the site, and also verify the science. @[505907433:2048:Bhaskar Deol]

If you live in Gurgaon and can lend me your air purifier for a night, I'd like to measure its efficacy. @[504214305:2048:Mithun Sundar]

An interesting thing I learnt while making this site. Running your air purifier at full fan leads to poor results. For catching the tiniest of particles, you need to run your purifier on slow. If you have a manual purifier, run it at full till 200, medium till 100, then low to achieve 30 or whatever is the best your purifier can do.

More expensive purifiers have sensors and electronics to automate this process. I want to test some of these to verify if the control system actually delivers.

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