Respiratory protection against dust and pollen with CE certification and quality. Effectively filters large allergenic particles, making it ideal for use in high concentrations of pollutants. Place the mask over the nose and mouth, adjusting the metal strip on the nose. Do not use during asthma attacks, and in well-ventilated areas. Store between -20ºC and 25ºC with relative humidity <80%. Do not exceed permitted concentrations of pollutants. Do not use during asthma attacks or in environments without sufficient oxygen.