• Filter specification: More than 90% of filtration efficiency. Tested with NaCl aerosol at inhalation flow rates of 95 liters/min with a particle size of 0.6 micron
• 2 disposable filters included - one fitted in the mask and one spare
• Cotton bag included to keep your mask clean
• Remove filter before wash / Filter is NOT washable / Wash mask often / Hand wash
PLEASE NOTE: this is not a medical grade face mask. All face masks and filter sets are non-returnable for hygiene reasons. The UK government advises that face masks should not be worn by those who may have breathing difficulties whilst wearing it.