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Tesla founder Elon Musk has offered to make ventilators during the coronavirus crisis — and the Big Apple is already showing interest.

“We will make ventilators if there is a shortage,” the 48-year-old tech pioneer tweeted late Wednesday — a message that soon caught the eye of New York City officials fearing an impending crisis of supplies.

“New York City is buying!” Mayor Bill de Blasio messaged Musk shortly after 9 a.m.

“Our country is facing a drastic shortage and we need ventilators ASAP — we will need thousands in this city over the next few weeks,” Hizzoner stressed.

“We’re getting them as fast as we can but we could use your help! We’re reaching out to you directly,” the mayor said.

Suggesting he was serious about the offer, the billionaire inventor replied, “Sounds good, we will connect with your team to understand potential needs.”

Musk made it clear that the hospital supplies would be a breeze compared to the space-age designs that made his firms famous.

“Tesla makes cars with sophisticated hvac systems. SpaceX makes spacecraft with life support systems. Ventilators are not difficult, but cannot be produced instantly,” he said.

His original offer received more than 18,000 likes by Thursday afternoon, with even the likes of Bette Midler responding.

“Start yesterday! There is a widely reported shortage … globally. And thank you!” the 74-year-old Hollywood star wrote.

Along with praise, however, he also received widespread ridicule for saying the offer would be “if there is a shortage.”

“IF??? Which planet you on, mate???” @TheAiLeen_L asked, while Andrew Wortman said, “There is a shortage RIGHT THE F–K NOW.”

“Start NOW!” Bruce Bluestein urged him. “We have a shortage and health care workers on the front lines are desperate.

“You have a chance to be a hero and save many lives. You have the power, the money and the organization. Go for it!”

Tesla would join a group of motor companies offering their help, with General Motors and Ford both already in talks with White House officials.

The offer comes amid escalating fears that the nation will soon run out of the vital medical equipment — with Gov. Andrew Cuomo telling the “Today” show Thursday that getting ventilators “is going to be key.”

Musk’s offer came just a week after he tweeted that the “coronavirus panic is dumb” — a tweet that was liked 1.7 million times.

While he appeared to be changing his tune, he still insisted Monday that “danger of panic still far exceeds danger of corona.”

“If we over-allocate medical resources to corona, it will come at expense of treating other illnesses,” he claimed.

On Wednesday, Tesla agreed to reduce the number of active workers at its California vehicle factory, a county spokesman said, amid regional lockdowns to rein in the virus. The company employs more than 10,000 workers at its sole U.S. auto factory in Fremont.

It was not immediately clear how the motor companies would manage production with each seeing factories closing because of the escalating pandemic.

With Post wires