In hospitals, messages to patients, contractors and visitors prior to visiting the hospital can be useful to increase awareness of the smoke-free requirements.
Mewn ysbytai, gall negeseuon i gleifion, contractwyr ac ymwelwyr cyn iddynt ymweld â’r ysbyty fod o gymorth i godi ymwybyddiaeth o’r gofynion di-fwg.