Moisture Control for Anaerobic Chambers

Controlling moisture within an anaerobic chamber is one of the most important aspects but each chamber is different so instead of a one size fits all solution we offer 2 separate solutions and discussion points.


Moisture enters the chamber in several ways.

  •                 Gas Supply Tank
  •                 Ambient Moisture in the airlock transfer process
  •                 Media stored in the chamber (liquid vs. solid media?)
  •                 Moisture producing material or equipment inside the chamber
  •                 The catalytic reaction during the O2 removal process

To remove moisture from the chamber Coy Labs offers you the following 2 methods;   Alumina Desiccant contained within a Stak-Pak and combined with the catalyst stak-Pak or a Large Capacity Dehumidifier that fits into the large equipment entry port.

Desiccant Stak-Paks are an inexpensive way to deal with minor moisture issues.  However for moderate to severe moisture the Large Capacity Dehumidifier is the most effective choice.

For major moisture issues the Coy Large Capacity Dehumidifier is the recommended solution.   Not only is the capacity increased but the automatic system needs far less maintenance.  In fact the only maintenance it requires is emptying of the water collection reservoir outside of the chamber.

The system functions as a large peltier cells create a cold wall inside the chamber to collect moisture.  The collected moisture the drips into a small reservoir inside the chamber and drained through tubing to a larger reservoir outside the anaerobic Chamber.

The unit attached to the chamber frame and is taped into the large equipment entry much like the standard Large Equipment Entry Port.  Controls allow the user to adjust levels from 30%RH and up.

Coy Stak-Paks (wire mesh container) filled with an alumina desiccant one per fan box in each anaerobic chamber can help control minor moisture issues.  The Desiccant Stak-Pak is connected to the catalyst Stak-Paks on each fan box and just like the catalyst rotated in and out of the chamber for regeneration.  The regeneration time frame for catalyst is varied but most likely will be increased as the desiccant is more likely to be saturated first.  Because airflow restrictions Coy does not recommend more than 1 desiccant stak-pak and one catalyst stak-pak per fan box.

Regeneration of the desiccant is the same as the catalyst being placed in side a 125-200 deg dry incubator or oven for up to 2 hours.

Atmosphere Regulation