Pro99-filter is our top performance filter, specially designed for outdoor sports such as running and cycling. The extra-large surface area lowers the resistance while enhancing filter efficiency. It is able to cut down 99% of PM2.5.
***You need to have Totobobo mask (Large/Small mask) to install this Pro99-filter.
A pair of Pro99 Filter
A pair of Pro99 Frame
Filter and frame will be pre-installed and packaged before shipping.
Pro99-filter can be used for up to 1 month. New, unused filter remain effective for 3 years within the package.