Material smaller than 2 mm, such as sawdust or finely chopped wheat, straw or hay, on the other hand, produces dust that is harmful to bird and human health.
Swondlalela leswinga swintsongo ka 2 mm, kufana na sawdust kumbe wheat leyinga tsemeleriwa kahle, straw kumbe hay, eka tlhelo rinwana, swivanga ritshuri leringa vavisaka tihuku nakuva na khombo eka rihanyu ra vanhu.