Colours: 5 different designs
MATERIAL:The fabric might have a smell at the start, but it is normal. Please rinse the mask without the filter in warm water(30°) and the smell will be removed.
CHANGING THE FILTER: Normally the filter can be used for 2 years. The filter should be changed every 3 months or 45 days for heavy usage.
CAUTION: The filter cannot be washed with water, which might damage it.