When comparing pharmaceutical filters, you're likely to find a wide variation in pricing. You may find yourself wondering -- what's the real difference between them? How can one sterilizing filter cost $500 and its equivalent cost $200? And in the case of a larger size, one can cost $1,000 while its equivalent costs $500. As a manufacturer of process filters for over 20 years, Critical Process Filtration, Inc. competes with large, well known filtration companies as well as distributors and smaller vendors. We have been asked how our filters, delivering the same performance, can be so much less expensive than our larger competitors. Visually, sterilizing cartridge filters with pleated PES (polyethersulphone) membrane and polypropylene support media and hardware look pretty much the same from manufacturer to manufacturer. The end cap or cage designs may vary to differentiate between manufacturers, but that's not the reason for the drastic cost differences. Comparing product specifications between suppliers shows that all sterilizing filters are integrity tested, with very similar diffusion and flow specifications. They are also validated to ensure the integrity test correlates to bacteria removal. So, if they look the same, and perform the same, what accounts for pricing differences of 50% or more? To try answering this question, we will detail the factors that impact the cost of filters in your market and why pharmaceutical companies should care.
It happens. Unfortunately, more often than anyone would like. You are about to process a new batch of fluids or adjust the current load and inventory status reports show that only half of the filters needed are in stock. Your next regular delivery is two months out. A phone call to your vendor reveals they can expedite your next order and it will arrive in six weeks. What do you do? You jump into crisis management mode, determined to figure out – how else can we get filters delivered fast? The answer to that question is now driving your business goal for that batch or shall we say, the cart is now leading the horse. In this article we will discuss options for improving delivery strategies and putting the horse back in the lead.
The alcohol, low oxygen content, relatively low pH, hops extracts (alpha-acids) and dissolved carbon dioxide in beer inhibit the growth of pathogenic bacteria. That is why beer has been a safe drinking alternative for so many centuries. However, there are microorganisms that can survive and even thrive in beer and spoil the flavor and aroma of any good brew.
The goal of pharmaceutical water system operators is to produce bacteria-free water that meets or exceeds required purity standards. Water systems use several filters to protect system components and to assure that the water dispensed for use is free of bacteria and most other particle contaminants.
Keeping Contaminants Out of Water Tanks Most of the time, the old saying, “An ounce of prevention is worth a pound of cure” is true. Preventing an unwanted event is usually easier than doing remediation work to repair whatever damage is done if the event occurs. However, in virtually all water systems, including pharmaceutical water systems, it is safe to assume that BOTH prevention and remediation are needed to control bacteria and other contaminants.
We hear this question on a regular basis, and although some may quip “buy cheaper filters” we contend that installing the RIGHT filter is the key to doing both simultaneously. Our experience with customers in different industries and applications has shown that those who spent the time to assess their process and test alternative filters are the ones that succeeded in finding cost savings and process performance improvement. Since every application has its nuances and every company has their standards, in this article, we will offer a more generic and holistic view of the question;
While filter ratings are an important indication of how well a filter will remove particles of varying sizes from a fluid or gas, it is important to note that nominally rated filters from different manufacturers can have the same rating, but yield different results. The opposite is also true – nominally rated filters from different suppliers can have different ratings, yet yield the same result. Naturally, this can create confusion and impact your filter buying decisions.