Pass-Thru Chamber vs Pass Through Cabinet – USP 800

Size matters when specifying Pass Throughs

For compliance with USP<800> and USP<797> for Hospital Pharmacy remodel, renovations and build-outs, there are better options than small Pass Through Chambers. The new general chapter, USP 800 Hazardous Drugs in Healthcare Settings, has created a lot of confusion around what types of Pass-Throughs are appropriate for the hazardous drug rooms, negative pressure rooms and positive pressure USP 797 clean rooms.   

Pass Thru Info & Cut Sheets 


Larger Pass Through Cabinets

To comply with guidelines for USP <800> and <797> best practices, Pass through chambers, boxes and cabinets with interlocking doors are required. Utilization of Continental Metal Products’ Pass through cabinets with electronic Interlock provides compliance with increased storage capacity. Single door cabinet dimensions of 24″ x 60″ take up a small amount of horizontal wall space and provide far more storage capacity. More popular double door pass through cabinets with widths of 36″, 42″ and 48″ are the most often specified, with heights of 60″, 72″ and 80″.


Make the most of the available space – specifying the best option!

CMP Pass Through Cabinets with Interlocking Doors comply best with USP 800 and 797

Pass-Thru Chamber is too small for compliance with USP 800











Increased Storage -Variety of Sizes

  • Available Widths: 24″ (610mm), 36″ (914 mm ), 42″ (1067 mm) or 48″ (1219 mm)
  • Available Depths: 18″, 24″, 29″ or 36″ (457,  610, 736.6 or 914 mm)
  • Available Height: 60″, 72″ or 80″( 1524, 1829 or 2032 mm)

Interlock Requirement

USP documents note; “Airlocks and interlocking doors can be used to facilitate better control of air balance  between a higher classified area and an area of lesser air quality (e.g., between the  buffer area and ante-area), or between a classified area and an unclassified area (e.g., between the ante-area and an uncontrolled area such as a hallway). If a pass-through is  used, it must only be opened one door at a time; both doors must never be opened at the same time” They define Pass through as; ” Pass-through: An enclosure with seals on interlocking doors that are positioned between two spaces for the purpose of minimizing particulate transfer while moving  materials from one space to another.”

Continental Metal Products provide compliance via our exclusive electronic interlock option. This option insures that the interlocked door cannot be forced open by resisting up to 500 lbs. of force.

REVIT Families Pass-Through Cabinets

CMP works hard to make it easier for Architects and Medical Equipment Planners to include Pass through cabinets in their plans for new hospital pharmacies. REVIT families are available upon request that include Pass through cabinets, as well as pass through windows, Warming Cabinets, Scrub Sinks, OR Cabinets, Catheter Cabinets, and more!

Attainia Listed Pass Throughs 

Continental Metal Products’ Pass-Thru Cabinets , as well as CMP’s full product portfolio is fully supported by  Attainia’s Capital Planning Solution’s online catalog

As we get closer to December of 2019, facilities will continue to adapt their hazardous drug rooms to meet USP 800 compliance.

For further questions on Continental Metal Products Pass through Cabinets with Interlocking doors,  USP 800, and USP 797,  feel free to contact us today.


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