This means that members of the public seeking or receiving goods or services from a person working at a dwelling are able to do so in a smoke-free environment.
Golyga hyn fod aelodau o’r cyhoedd sy’n ceisio neu’n derbyn nwyddau neu wasanaethau gan berson sy’n gweithio mewn annedd yn gallu gwneud hynny mewn amgylchedd di-fwg.