We got an inside look at how US Navy recruits are exposed to tear gas during basic training. Insider spent five days at Navy Recruit Training Command, Great Lakes, where we observed recruits at various stages of their 10-week boot camp. During the fourth week of training, recruits learn how to properly don an M50 gas mask and are exposed to CS gas in the "confidence chamber." While wearing a gas mask, the recruits watch as an instructor burns a CS capsule over a hot plate, filling the chamber with gas. Recruits then remove their masks completely and experience the full effects of tear gas. For the first time ever, our crew was allowed to film inside any branch or agency's tear gas chamber, and in order to truly understand the effects of CS gas, Insider chief video correspondent Graham Flanagan decided it was time to experience the confidence chamber himself… MORE BOOT CAMP VIDEOS: What Navy Recruits Go Through In Boot Camp | Boot Camp | Business Insider https://www.youtube.com/watch?v=63G8eh_Ps_M Every Uniform In A Navy Sailor's Seabag | Loadout | Business Insider https://www.youtube.com/watch?v=dS-QGTqphWE How Military Dogs Are Trained | Boot Camp | Business Insider https://www.youtube.com/watch?v=xit5GR_Nm10 ------------------------------------------------------ #TearGas #BootCamp #BusinessInsider Business Insider tells you all you need to know about business, finance, tech, retail, and more. Visit us at: https://www.businessinsider.com/ Subscribe: null BI on Facebook: https://read.bi/2xOcEcj BI on Instagram: https://read.bi/2Q2D29T BI on Twitter: https://read.bi/2xCnzGF BI on Snapchat: https://www.snapchat.com/discover/Business_Insider/5319643143 Boot Camp on Snapchat: https://www.snapchat.com/discover/Boot_Camp/3383377771 Why Navy Sailors Train Inside A Tear Gas Chamber In Boot Camp | Boot Camp | Business Insider