Airflow Visualization (Smoke Studies) Purpose: Confirms airflow patterns, particularly in cleanrooms and critical areas where contamination control is crucial. Process: Smoke or fog is introduced to visualize the airflow direction, ensuring it moves as intended (e.g., from high to low classification areas) and does not lead to recirculation or contamination risks. Focus Areas: Laminar flow…
Design Qualification (DQ) The DQ phase involves verifying that the HVAC system is designed according to the requirements of the facility, production process, and regulatory guidelines (e.g., WHO, EU GMP, FDA). It should ensure that: Room classification: Cleanrooms and controlled environments are designed to meet the required cleanliness level, such as ISO 7 or ISO…
Fumigation is a method of pest control or the removal of harmful microorganisms by completely filling an area with gaseous pesticides, or fumigants. It involves heating a 40% formaldehyde solution to generate vapor, which is left in the sealed room for 12-24 hours. Formalin is available as 40% solution of formaldehyde in water. When Formalin…
DOP/PAO testing is a very quick process that tests the integrity of the HEPA (High Efficiency Particulate Air) filter using DOP or PAO solutions in their operational conditions. These solutions generate a gas type smoke and then generate gas particles that will be greater than .03 microns. The test will certify the HEPA filter is…
Pre-treatment system 1- Pretreatment process contains traditional processes, such as Feed water storage tankļ¼Heat exchanger heating deviceļ¼Mechanical filtrater, activated carbon filtrater, softener,Precision Filter, dosing device, as well as ultra-filtration, residual chlorine removal UV, micro-filtration, etc. Residual chlorine removal UV system 1- Using residual chlorine removal UV system in pretreatment, instead of activated carbon…
