written by shabzoo on 22/02/2014
I couldn't really understand the filter till I held it in your hand, there are lots of parts, and one got lost on first day (we found it). Looks sturdy construction, heavier than expected. Looks like a flask, would not pass though hand baggage. Still to test in the field, when I go. On the box, they recommend another filter for viruses, which disappointed me. Also, postman left in porch, in full view of thieves.