O2 For Everyone is a Kolkata-based provider of advanced respiratory care solutions. Their mission is to make high-quality oxygen therapy accessible at home for individuals with chronic respiratory conditions, post-COVID recovery needs, or long-term health management. They offer both rental and purchase options for oxygen concentrators, cylinders, BiPAP/CPAP machines, and related accessories. Their customer-first approach includes fast delivery, installation guidance, and 24/7 support.