
News Desk Delhi NCR 27th November 2025
Delhi-NCR’s air quality has deteriorated sharply through November 2025, with the city repeatedly slipping into the severe and hazardous categories on multiple days. Against this backdrop, the US Embassy in New Delhi has initiated a major procurement exercise to secure 1,200 boxes of True HEPA Particle Filters for its extensive network of Blueair air purifiers.
The US Embassy in New Delhi uses Blueair air purifiers. While the exact models are not announced, the information in the tender refers to Blueair’s older large-room purifier lineup. It includes models like Blueair 501, Blueair 503, Blueair 510, Blueair 601, Blueair 603 and Blueair 650E. All of them use the same shape and size of filter. The Model-503 is one of Blueair’s most common large-room HEPA purifiers.