It is recommended that signs/posters are placed at the exits from a building to the smoke-free grounds to remind users that it is against the law to smoke in the grounds.
Argymhellir bod arwyddion/posteri yn cael eu gosod wrth allanfeydd o adeilad i’r tir di-fwg i atgoffa defnyddwyr ei bod yn erbyn y gyfraith i smygu yno.