Helmet cleaner.Removes dirt, dust, rust and grease stains from the surface of the helmet.Helmet cleaner is a noun phrase. Removes dirt, dust, rust and grease stains from the surface of the helmet is a verb phrase. We can translate them into Danish as follows:Helmet cleaner -> Helmet cleanerRemoves dirt, dust, rust and grease stains from the surface of the helmet -> Fjerner snavs, støv, rust og fedtpletter fra overfladen af hjelmen