mold fungus and rust growing in tile joints in damp poorly ventilated bathroom with high humidity, wtness, moisture and dampness

allergy areas bacteria bath bathroom bathtub cleaning concept damage damp dampness dirt dirty dump filth filthy fungal fungi fungus grout growing grunge high home household housework humidity hygiene joint joints messy mildew mildewed moisture mold moldy mould mouldy old poorly problem renovation restroom rust rusty sanitary sealant shower spore tile tub unclean unwashed ventilated wall washroom wet wtness