Response from Lifestraw regarding their products.

Thank you for your thoughtful question.

LifeStraw Filter uses two types of filtration (apart from carbon) depending on the product:
Membrane microfilters (0.2 micron pore size) are used in products like the Home Pitcher, GO Bottle, and Collapsible Squeeze Bottle. These effectively remove bacteria, parasites, and microplastics. However, nontuberculous mycobacteria (NTM), including MAC, are smaller and not guaranteed to be removed by these filters.
Ultrafilters (0.02 micron) are used in some of our emergency and medical-grade products, offering additional protection down to virus-sized contaminants.
While third-party testing on the GO Bottle has shown potential NTM removal, this is not something we currently claim across all products.
The Home Pitcher microfilter should be replaced every year or 264 gallons, whichever comes first. Replacing more often will not increase removal of NTM if it isn’t already filtered by design.
You can view our lab reports and testing data on our Testing page under each product. If a contaminant is not listed, the filter has either not been tested for it or is not designed to remove it.
I hope this helps clarify things.

Kind Regards,