Use Sip with tapp water contaminated with Pseudomonas passed through Brita carbon( work in progress on water net in town I live).I am not sure Lifestraw can protect from nora viruses and enteroviraceae like Lifesaver that is much bigger company then yours.Please see some you tube reviews,I do not want to comment them,beleive to you.Anyway I use one Atlas filter carbon and acrilate fiber in bathroom for tooth hygiene.Because of renal stones I use also distilled water from home distillator to drink but with potassium supplementation and Mg suplementation once a month.Sodium is supplemented on dayly base.I can not make any risks,I am in post coronary infarction period with seven stents placed( 4 on DCA,1 on LM and 2 on LAD).Worked as anesthesia & ICM dr.med.in small hospital and caught infarction during the work on cesarean section delivery in regional block. Be sure about enteroviruses and nora protection!!!!Your product(Sip) is on fair price,very functional,one is used by my wife,another by me while drink tapp water.

I bought it to use it whenever I'm drinking water outside, but it's really hard using it. I like your brand but I'm disappointed with this product.