Application of Ohropax Classic earplugs (pack size: 20) Ohropax Classic earplugs (pack size: 20) are pleasantly soft earplugs for noise reduction. Effects of Ohropax Classic earplugs (pack size: 20) per ear, an Ohropax Classic earplugs (pack size: 20). An earplug is gently pushed into the ear and adapts to the shape of the ear. They are used for noise reduction to protect hearing. Active ingredients: Ohropax Classic ear plugs (pack size: 20 pieces) are made of cotton wadding, which are soaked with a mixture of vaseline and various paraffin waxes. Contraindications: In case of known hypersensitivity to any of the above ingredients, this product should not be used. Dosage: apply Ohropax Classic earplugs (pack size: 20 pieces) as needed.