Ko te whakahaere taiao o Shanglaite me te hanga PDT i runga i te hunga matatika tohu ai i te kaiwhakamua o te hiranga paihere rama. Ko te hunga matatika i tūhono ki ngā tono e āta whakaatu ana i ētahi atu wāhanga o te hanga me te mahi a te tūtohi. Tuatahitia, i runga i te tahuri rama, ko te tūtohi i whiwhi mai i ngā mōhiohinga rama matua e āta whakahaere ana i te pireka, te wehewehe, me te whakawehenga o te rama i tahuri ai. I whakatakotohia ngā pireka i te kotahi tuatahi o te waenganui, heoi nei kei roto i te rahurahu iti o 1-2 nanomete. He nui te hēmoko o tēnei pireka, no reira ka taea te wehewehe i ngā pireka rama ki ngā whakapapa katoa. Ki roto i te whakararu i ngā pakipaki, ka taea e tetahi pireka anake te whakawehea i te photosensitizer hei whakatika i ngā bakitera pakipaki, ahakoa te itinga i te whenua o ngā putea hauora. Ka taea hoki te wehewehe i te wehenga o te rama. Ko te tūtohi ka whakamahia ngā rangitaki mōhiohinga e taea ai te tirohia me te whakahaere i te wehenga o te rama i waenganui i ngā take whakararu, te momo kiri, me te wa o te whakararu. Ko tenei e tirotiro ana hei whakatika i te wehenga o te photosensitizer ki te kitea i te wehenga pai o te rama, ka whakaiti i te hiko o ngā take tahae, pērā i te kura kiri me te kōpikopiko. No reira, ka whaihua te hunga matatika ki te whakawehenga rama. Ko te hanga tūtohi e taea ai te whakauru rama whakarite ki runga i te wāhanga whakararu, ka noho haumaru ngā wāhanga rama iti me ngā wāhanga rama nui. E ai ki ētahi atu momo, ka whai i ngā upoko rama whakarerekē ranei ko te hunga ka taea te whakarite ki ngā wāhanga tinana rerekē me ngā hiahia whakararu. Ko tenei hēmoko e whaihua ana i te hiranga o te whakahaere taiao PDT, ka whaihua hoki i te haumaru me te manaaki o te take whakararu, ka noho tino whakaaro pai mo ngā kaiwhakahaere oranga me ngā mate.