Replaceable PM2.5 Filter- 5 layers!
PM2.5 Filter has five layers of different material to give effective N95 filtration. Each filter has a lifespan of 100 Active Hour Of Usage or 2 weeks, whichever earlier. Two filters should last you about a month, depending on your usage. You can choose to add more filters.
Designed to filter out harmful particles:
The Filter protects from bacteria and pollution that are impossible to see with the naked eye. The filter works against particles as small as 0.3 micrometers.