And if you have asthma it's bad even below 0 C. I use my Lungplus [1] as soon as the weather hits +5 C, makes me able to actually do something outdoors in the w

And if you have asthma it's bad even below 0 C. I use my Lungplus [1] as soon as the weather hits +5 C, makes me able to actually do something outdoors in the winter. It's just a heat exchanger in your mounth, storing heat from the exhaust air, and heating up the intake air [2] :-) [1] https://www.lungplus.se/databl_e.html https://www.lungplus.se/databl_e.html [2] https://duckduckgo.com/?t=ffab&q=lungplus&iax=images&ia=images&iai=https%3A%2F%2Fwww.lungplus.de%2FImages%2Flungplus-waermetauscher-bei-atembeschwerden.jpeg https://duckduckgo.com/?t=ffab&q=lungplus&iax=images&ia=imag...