PM2.5 Filters:80S-YELLOW (moderate pollution)
90S-ORANGE (high pollution)
95S-RED (severe pollution)
99S-PURPLE (hazardous pollution)
One pack contains 5 pairs of filters. We recommend you change filters every 2 weeks. Also change them if they get wet, look very dirty or are hard to breathe through.
Our 80S, 90S, 95S and 99S filters include an anti-bacterial Nano-silver coating that kills germs. All our filter protect against particulate matter (PM).
Use the Air Quality Index (AQI) to choose filters:
- Use the AirVisual app or the WAQI website to find the air pollution (AQI) in your area.
- Choose a filter that matches the color of the AQI. For example, if the AQI is orange, choose the 90S-ORANGE filters
- Higher filters are harder to breathe through and also more expensive, so don't choose a higher level than you need
All filters are independently tested at Nelson Labs, USA and conforms to the ASTM F2100 standard at a particle size of 0.1 microns.
Ordered several face masks and filters. Great quality and arrived very quickly.
I was a mechanical engineer. I know how filtration works. I know how masks work. I love my Styleseal mask. It is stylish, comfortable, and effective. I have been wearing them in Bangkok for a full year now.
Choose the filters to suit your needs. Easy to breath even with maximum protection. The mask doesn't collapse and balloon as you breathe. The exhaust valve keeps moisture from building up inside the mask. Best mask / filter system yet.
No more comments but it is good to me and my family