Which filter is used to remove glass particles when preparing sterile products from ampules?

Which filter is used to remove glass particles when preparing sterile products from ampules?

• A. 5 micron filter
• B. 0.22 micron filter
• C. 0.1 micron filter
• D. 10 micron filter

Answer: (A)

When preparing sterile products from ampules, protecting the solution from glass particulates that can shed from the ampule is essential. A filter with a 5 micron pore size is used as an initial step to capture those larger glass fragments before the liquid reaches the final sterilizing filter. This helps prevent clogging of the finer sterilizing filter and reduces the chance that glass particles enter the product. After this, the liquid will typically go through a 0.22 micron sterilizing filter to achieve sterility. A smaller 0.1 micron filter would be unnecessarily fine and prone to clogging from glass, while a 10 micron filter could allow larger fragments to pass. Thus, the 5 micron filter is the best choice for removing glass particles.

When preparing sterile products from ampules, protecting the solution from glass particulates that can shed from the ampule is essential. A filter with a 5 micron pore size is used as an initial step to capture those larger glass fragments before the liquid reaches the final sterilizing filter. This helps prevent clogging of the finer sterilizing filter and reduces the chance that glass particles enter the product. After this, the liquid will typically go through a 0.22 micron sterilizing filter to achieve sterility. A smaller 0.1 micron filter would be unnecessarily fine and prone to clogging from glass, while a 10 micron filter could allow larger fragments to pass. Thus, the 5 micron filter is the best choice for removing glass particles.