@rosemarya Here is the info about what lurks in swimming pools and hotubs. Can also be in your water pipes in the home. Bathing in tub generally safer than showering because the bacteriums that multiply in the shower head escape by the steam from the shower and get inhaled.

Can anyone recommend a good shower/filter for bacteria AND chloride AND fluoride or am I dreaming? Well into my 70s, I've had bronchiectasis for almost 25 years with low energy, chronic fatigue; MAC probably last 5-10 years; hospitalized 2002, 2006, 2013. Just take an antibiotic when in an otherwise uncontrollable episode. Use vibratory device nights for postural drainage. Eat well, lots fruits & veggies; take supplements, homeopathics, herbs - latter particularly to keep episodes from becoming severe. Wish I was in Europe where stem cell therapy is in sanctioned use, but can no longer take planes.

@alessandre , Hello, and welcome to connect. I will poke around and see what I can find in past posts about filters. I don't think the micron showerhead filter work against flouride and chlorine. Those may have to be erradicated at the incoming source of water into your house; like a reverse osmosis type of filter. Wow, 25 years of fighting mac! I used to be only treated intermittantly with antibiotics and would end up in the hospital 2x a year. Now, the Mayo has me on monthly rotating antibiotics. Do them 10 days a month. Been doing it since 2013. It has been two years and half since I have had to go to a doctor for illness or ER, and no more cough. The world Mac conference I went to in D.C. in 2016; he Mac specialists from around the globe all agreed that it takes longer duration on antibiotics to treat this. I hope you will go to the 'Discussion' page and read through the various topics. Also, reading over old posts written by @katemn will provide lots of valuable info. In fact, she is the one that had info about water filters. Please feel free to ask questions or share your experiences with mac. After having it for 25 years you probably have a lot to say about it. In case you don't find the post on filters, I will look also. By the way, do you have bronchiectasis also?

@alessandre Concerning stem-cell use, there are clinics here in the states that use them to regenerate lung tissue. Problem is, it doesn't work. Not in this country anyway. I have had many report that it did not work for them, and only one that said it did. There is no proof that it did. I know that Mayo Clinic researchers are close to isolating the t-cells that are specific to lung tissue regeneration. They have had success in animal testing and it is now in the human testing phase. I pray for the day that stem-cell therapy is commonplace and effective. If you find any links from Europe that has stem-cell info, will you please share it with us? Thanks-Terri