Buy and sell used, pre-owned, refurbished respiratory care, pulmonology medical equipment CPAP, BiPAP, Oxygen concentrators, nebulizer, PFT machine, Pulse-oximeter, Blood Gas analyzer, bronchoscopes etc., from good brands like BPL, Philips resmed, Inogen G3 portable oxygen concentrator, Philips respironics, Nidek, Nupro, Oxylife are on sale.