Qualità dell’aria 
Monitor dell'aria
Purificatori d'aria
Per il business
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holger gross
Individuale
1 Station
10 follower
Website
www.holgergross.seInformazioni generali
I am a building engineer, born in 1943 and living on the island Gotland in Sweden. One of my interrests is air quality, outdoors as well as indoors.
Stations
Ammonitgatan
Visby, Sweden
8
AQI US, Metric