![Airtrim | andningsfilter, värmeväxlare, sportfilter, racingfilter, astmafilter, airtrim, surahammar, vapro, vapro produktutveckling ab Airtrim | andningsfilter, värmeväxlare, sportfilter, racingfilter, astmafilter, airtrim, surahammar, vapro, vapro produktutveckling ab](https://www.airtrim.se/eng/images/emil.jpg)
Airtrim | andningsfilter, värmeväxlare, sportfilter, racingfilter, astmafilter, airtrim, surahammar, vapro, vapro produktutveckling ab
![Does anyone know what these oxygen-less masks are? Adrian Ballinger and Ueli both have the same one it looks like. Googling “high altitude masks” doesn't help. : r/alpinism Does anyone know what these oxygen-less masks are? Adrian Ballinger and Ueli both have the same one it looks like. Googling “high altitude masks” doesn't help. : r/alpinism](https://i.redd.it/ujlx661llul61.jpg)
Does anyone know what these oxygen-less masks are? Adrian Ballinger and Ueli both have the same one it looks like. Googling “high altitude masks” doesn't help. : r/alpinism
![Airtrim | andningsfilter, värmeväxlare, sportfilter, racingfilter, astmafilter, airtrim, surahammar, vapro, vapro produktutveckling ab Airtrim | andningsfilter, värmeväxlare, sportfilter, racingfilter, astmafilter, airtrim, surahammar, vapro, vapro produktutveckling ab](https://www.airtrim.se/eng/images/startsida8.jpg)
Airtrim | andningsfilter, värmeväxlare, sportfilter, racingfilter, astmafilter, airtrim, surahammar, vapro, vapro produktutveckling ab
![Tommy Leandersson on Twitter: "Testing #airtrim "breathheater" to use in swedish winter wheater. Russian MIG-pilot. ;-) #velomobile #waw #velo-city.se https://t.co/nVzk3QZl5F" / Twitter Tommy Leandersson on Twitter: "Testing #airtrim "breathheater" to use in swedish winter wheater. Russian MIG-pilot. ;-) #velomobile #waw #velo-city.se https://t.co/nVzk3QZl5F" / Twitter](https://pbs.twimg.com/media/CuLA2WOXEAAD7ji.jpg)
Tommy Leandersson on Twitter: "Testing #airtrim "breathheater" to use in swedish winter wheater. Russian MIG-pilot. ;-) #velomobile #waw #velo-city.se https://t.co/nVzk3QZl5F" / Twitter
David Göttler - This winter, I have started to use an #airtrim mask whenever I train in the cold. Until now I had always been quite badly affected whenever I worked out
![Suzanne Leclair on Twitter: "Running in freezing cold could harm lungs. To mitigate this risk, I found #AirTrim. How did I ever run in winter without this? https://t.co/zTdhTutM1c" / Twitter Suzanne Leclair on Twitter: "Running in freezing cold could harm lungs. To mitigate this risk, I found #AirTrim. How did I ever run in winter without this? https://t.co/zTdhTutM1c" / Twitter](https://pbs.twimg.com/media/EshZOHcXAAE5tin.jpg:large)