Hi, what were your criteria taking into consideration when deciding on which model/brand to buy? Thank you, Philippe...
Hi, thank you two very much for your experiences. @Canada26: Could you provide me a link of what you are using for camping? Can you breathe comfortable with this kind of mask? Since you might be...
Hi, I am working on an university innovation research project at Vienna Business University that is about indoor air quality and air purifiers. Our aim is to develop innovative ideas for air...