Add Air Hood

LOC’s Add Air Fume Hood provides added economy through the use of a front mount “add air plenum” that can supply up to 70 percent of the total Hood air volume requirement from an outside source. 



  • Provides up to 70% of the overall air volume requirements.
  • Equipped with a full view sash providing an unobstructed view of the hood interior.
  • Sash is 7/32" laminated safety glass with full width flush PVC pull and includes a spring loaded sash stop.
  • Includes audible LOC500 airflow monitor for safety.
  • Counterweight provides a one finger sash operation.
  • Hood entrance is framed with inward-angled members to minimize turbulence and provide smooth air movement in hood at face velocities ranging from 60 to 150 FPM.
  • Stainless steel airfoil allows 1" of airflow across the work surface when sash is in the closed position.
  • Double wall construction for ease of routing plumbing/ electrical lines.
  • Standard "Resin-Chem" interior liner with removable access panels on both sides.
  • Removable exterior side panels.
  • Lights are mounted above a sealed safety glass panel keeping corrosive fumes and hazardous vapors isolated.
  • Tube lights can easily be replaced through the top front.

Add Air Fume Hood Specs

The static pressures listed above are for the hoods only. An appropriate amount will need to be added to this figure to compensate for the pressure drop through the duct system. The total pressure drop through the hood and the duct system must be known to select the proper exhaust blower.

What Type of Fume Hood Does Your Lab Need?
Why Does Your Lab Need a Fume Hood?

  • A variety of optional service fixtures are available from LOC for installation in the Add Air Fume Hood.
  • Mounting holes for service fixtures and electrical receptacles are pre-cut and capped when fixtures are not required. 

Add Air Fume Hood

Add Air Fume Hood Dimensions