India, Nov. 11 -- Delhi's pollution problem has a new wellness fix. But does Hyperbaric Oxygen Therapy actually work?

In Delhi, wellness increasingly begins with checking the Air Quality Index. From air purifiers and N95 masks to moving morning walks indoors, living with poor air quality has changed the way people think about their health. And now, a new entrant wants to take that pursuit a step further: Hyperbaric Oxygen Therapy (HBOT).

So what is HBOT? Imagine stepping into a futuristic pod, lying back, closing the door and spending the next hour or so breathing oxygen. That's the basic premise of Hyperbaric Oxygen Therapy. Except there's a little more science to it than a particularly elaborate relaxation session. As Delhiites look ...