My camper came with tires filled with Nitro air

ugh wrote:
Can I use regular air to top off the tires if it is under pressure? I just don't know if it is okay to mix two different of air.

scam and a profit center. unless you're going to enter an Indy Car or NASCAR race save your money and use regular air. yes, you can mix the air. you may not be aware that the air we breathe is mostly nitrogen (78%), oxygen makes up just 21%.