Respect, from one life-saver to another.

City firefighters in full turnout gear blared their sirens and cheered Friday night in a show of gratitude for medical workers at NYU Langone Kips Bay, one of the frontlines of the coronavirus pandemic.

“We love you!” a firefighter could be heard shouting, as a row of FDNY members clapped and whooped.

New York’s Bravest offered their standing ovation at 7 p.m., as smiling medical workers took a brief respite from the battle against the disease in the country’s epicenter.

“Back to work! Back to saving lives!” one Langone worker then shouted.

The heart-rending show of appreciation came hours after New York’s COVID-19 death toll surpassed that from the 9/11 terror attack.