Please add spaces between words: Itisalittleuncertainwhethertheeffectfromcontactallergensisthesameatanexposureviatherespiratorytractasatskincontact,buttheareorcanberediscoveredinaerosols,whichmaypotentiallyalsosettleonskinsurfaces.
It is a little uncertain whether the effect from contact allergens is the same at an exposure via the respiratory tract as at skin contact, but the are or can be rediscovered in aerosols, which may potentially also settle on skin surfaces.