Hi there dmwinsd,
Thanks for reaching out to the Apple Support Communities. We understand you have questions about cleaning the fans out on your new MacBook Pro, and we'd be happy to provide you with the best information.
To get started, we'd recommend taking a look at the following resource for the best information on how your MacBook monitors internal temperature and uses the fans to cool your device: About fans and fan noise in your Apple product - Apple Support
Also, take a look at the next link for the best steps on cleaning your MacBook: How to clean your Apple products - Apple Support
Per the resource above, it is not recommended to use aerosol sprays on your device, so if you have any concerns about your fans it would be best to bring your MacBook into a local Apple Store or Apple Authorized Service Provider for inspection first.
If you even need any help with finding an nearby service location, check out this link here: Find Locations - Apple
We hope that's able to help.
Take care.