@ana323 I have been using the Lifestraw pitcher for almost a year. I thought, from reading earlier posts and listening to NTM webinars, that MAC was filtered out. I have MAC, and have already had pneumonia three times this year - still recovering from the latest episode in late September.

I just found a question on Amazon which posted on 12/26/20 regarding this. "Does this pitcher filter out Mycobacterium Avium? If so, for how long?" The response from the Manufacturer stated "Our products do not filter Mycobacterium Avium, but it does filter Mycobacterium tuberculosis."

So, now what? Should we just drink Spring water and forget about the Lifestraw pitcher which is expensive and time consuming to maintain?

Does anyone have any thoughts on this? Or, proof that the filters work for removal of MAC?

@ana323 Did you check the Lifestraw site? AI is not necessarily a reliable source.

From the Lifestraw website:
"The first, most common filter used in LifeStraw products is a membrane microfilter capable of blocking particulates and pathogens larger than 0.2 microns in size (effectively removing microplastics based on size exclusion). In general, nanoplastics are too small to be blocked by this filtration pore size. " (https://lifestraw.com/blogs/news/filtering-microplastics-and-nanoplastics-from-drinking-water)

Based on this statement, and on the recognized standard for filtering out mycobacteria (.2 micron filter) it looks to me like LifeStraw meets the criteria. Remember, they cannot list every bacteria removed.