SOP For Dehumidifier

Standard Operating Procedure for portable dehumidifiers also known as vertical or petal dehumidifiers.

1.0 Purpose

The purpose of this SOP is to develop a standard procedure for operating the Dehumidifier.

2.0 Scope

This SOP is applicable for the portable dehumidifiers used in the mixing, granulation, compression, or encapsulation area of the production section.

3.0 Responsibility

3.1 Machine Operator is responsible for operating the Dehumidifier.

3.2 Production Pharmacist is responsible for the implementation of this SOP.

3.3 The HOP is responsible for ensuring the implementation of the current SOP.

3.4 Q.A. Officer monitors the compliance of this SOP.

4.0 Procedure

4.1 Relevant area Pharmacist shall ensure that the fans, filters, and body of the dehumidifier are properly cleaned according to the standard cleaning procedure and the water-receiving container or tray is empty.

4.2 Pharmacist shall ensure that the dehumidifier & the area is labeled with product-related labels 

4.3 After ensuring the cleaning of the dehumidifier & checking the filters of the dehumidifier, take line clearance from the Quality Assurance officer.

4.4 After line clearance, insert the wire plug of the portable dehumidifier in the wall-mounted socket & press the On button.

4.5 After pressing the On button it will start working & at the end of the operation press the Off button, remove the wire & discard the water collected in the container or tray of the dehumidifier.

4.6 Attach ‘To be cleaned label’ and record the activity in the logbook of the Dehumidifier.

5.0 Abbreviations

5.1 SOP: Standard Operating Procedure

5.2 BMR: Batch Manufacturing Record

5.3 QA: Quality Assurance

5.4 HOP:Head Of Production.


Portable dehumidifiers are used to control the relative humidity in the areas where it is not controlled by the HVAC means where the humidity control system is not installed in the AHU. Currently, the use of portable dehumidifiers is not encouraged in the pharmaceutical industries rather it must be controlled by the HVAC system.

Also, Read

  1. SOP for Wet Granulator.
  2. SOP Of Fluid Bed Dryer
  3. SOP for Compression Machine