How does the bag-in-bag-out air purification equipment simplify the filter replacement process in high-risk environments?
Publish Time: 2025-04-15
In high-risk environments, such as biological laboratories, pharmaceutical workshops, or radioactive material processing areas, the filter replacement process of air purification equipment must strictly follow safety regulations to prevent contaminant leakage and protect the safety of operators and the environment. The bag-in-bag-out technology was born for this purpose. It greatly simplifies the filter replacement process while ensuring the safety of operation.
The bag-in-bag-out technology uses a special sealing bag to wrap and remove the old filter when replacing the filter, and then installs the new filter in a new sealing bag to ensure that the contaminants are always sealed in the bag during the entire replacement process and will not leak into the external environment. This technology not only reduces the risk of contamination, but also eliminates the cumbersome disinfection steps in the traditional replacement process, greatly improving the efficiency of the operation.
Preparation: Before replacing the filter, the operator needs to wear personal protective equipment, such as gloves, protective clothing, goggles, etc., and prepare the required PVC bags or high-temperature bags, as well as necessary tools, such as plum bolts, cable ties, etc. At the same time, ensure the safety of the operating area, set up isolation areas or warning signs to prevent unauthorized personnel from entering.
Shut down the system: First, shut down the system where the filter is located to prevent air flow and the spread of contaminants. This step is critical and is a prerequisite for ensuring the safety of the replacement process.
Remove the old filter: Put a PVC bag or a high-temperature bag on the outlet and inlet of the old filter, making sure the bag is completely closed. Then, follow the manufacturer's instructions to loosen the filter's fixings, slowly pull it out and put it into the bag. During the removal process, pay special attention not to pull the bag hard to prevent the rubber ring from falling off and causing contaminants to leak.
Seal the old filter: Seal the bag containing the old filter and check whether the seal is intact. Then, move the bag to a safe area for proper disposal.
Install the new filter: Unpack the new filter and check whether it is intact. Put the new filter in a new PVC bag or high-temperature bag and ensure that it will not be contaminated during transportation and installation. Next, put the new bag on the installation port of the filter and adjust the position so that it fits tightly with the filter.
Fix the new filter: Push the new filter into the installation position and fix it according to the manufacturer's instructions. Make sure the sealing gasket of the filter is in close contact with the clamping mechanism to ensure the sealing effect.
Inspection and testing: Restart the system and perform a running test to verify the performance of the filter. At the same time, perform necessary performance tests, such as scanning leak tests, to ensure that the filter meets the specified standards.
Record and archive: Record the date, time, model and any relevant test results of the filter replacement for subsequent tracking and management.
