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Mwy o Iaith
awyru aer
Chwefror 1, 2021
Mae peiriant anadlu yn disodli aer hen a drwg mewn adeilad ag awyr agored ffres.O'i gymharu ag awyru naturiol, gall system awyru fecanyddol gyflawni mwy […]
Chwefror 1, 2021
Mae awyru aer da yn atal llygryddion aer rhag cronni a allai effeithio ar eich iechyd.Mae hefyd yn rheoli'r lleithder yn yr aer i atal llwydni niweidiol […]