Most of us know that a properly designed and installed ventilation system is our FIRST option for controlling hazardous concentrations of flammable vapors, gases, fumes, mists or dust, and volatile or airborne materials posing a health hazard, such as toxic or corrosive materials. And thankfully, most workstations and areas that need proper ventilation have it these days; however, we tend to find these systems were often times designed and/or installed by unqualified personnel and thus oftentimes do not FULLY COMPLY with ACGIH or AIHA standards, and thus they may not be as effective as needed. Here is an easy checklist to determine if your ventilation system meets “code”: