Waxaan soo saarnay dhammaan noocyada ugu wanaagsan ee halogen nalalka loogu beddelo sannado badan.

Laga soo bilaabo 2013, dhammaan nalalka halogen ee beddelaadda si degdeg ah ayaa loo hagaajiyay.

Waqtigan xaadirka ah, badi nalalka halogen-kayaga beddelka ayaa dhamaantood isticmaalaya “Anti-uv quartz galaas”, markaa wakhtiga noloshu waa mid aad u dheer.

Tusaale ahaan, celceliska wakhtiga nolosha ee beddelaadda laydhka hore ee halogen waa qiyaastii 800-1200 saacadood.

Inkasta oo qiimaha cirka ee halogen gaaska, warshaddaydu waxay weli ku adkaysanaysaa inay geliso halogen ku filan beddelkayaga nalalka halogeenka.

Si aan si cad kuugu muujino beddelkayaga ugu fiican ee halogen, waxaan ku tusi doonaa sawirro sida hoos ku qoran.

Waxaan rajeyneynaa in dhammaan macaamiishu ay u yimaadaan inay nala hadlaan nalalka hore ee halogen ee wanaagsan inay beddelaan wakhti kasta.