mold icon on white background. round mildew mycelium.

background bacteria blue bread cartoon ceiling circle concept condensation damp design dust element flat food fungal fungi fungus graphic grey grow growing growth hazard health high humidity icon illustration isolated microscope mildew mold mould mucor musty mycelium penicillin penicillium problems respiratory rhizome rotten round shape smutch soil splash spore spot stock surface symbol vector virus wall white