Anti Odor/Moisture regulator Filter
One pair of reusable anti-odour and moisture regulating filter
Blue or Pink
The foam filters can be wash and reuse. It is possible to trap larger particles such as pollen or heavy dust. The "Travel Filter" is useful to cut down bad smells (e.g. when cleaning cat-letter-box). It is also useful to keep the moisture within the breathing zone in a very dry environment, such as during a long flight.
PS: This filter is for comfort purposes, do not use for air pollution or PM2.5.