English to Spanish Other Materials (Plastics, Ceramics, etc.) limpieza de lentes

El texto trata sobre una lámpara frontal para médicos, y en el apartado de limpieza hablan sobre "blowball" y "dust pen". ¿Alguien conoce estos productos? Gracias

Cleaning the lenses： Glass-cleaning paper or a drop of liquid solvent (50％ alcohol and 50％ ether) may be used to clean the lens, wipe it carefully. If there is dust stained on the lens, blow them with a blowball or brush them with a dust pen.
Be careful to prevent the solvent into the instrument.