B&M's latest equipment purchase is a "smoke machine". This piece of equipment allows us to check for leaks in your emissions system, air conditioning system, vacuum system or where ever else might be leaking to quickly and accurately diagnose whats going on. It will allow us to detect leaks as small as .020"!! That is about two times the thickness of a normal human hair!! For accurate and professional testing and repair for any system leaks, call us or visit B&M!!