While you can use any filter you want with the Aplu mask, this custom cut filter will give you the best protection.

What's more important, breathability or safety? Well, we think they're both important and so we created this filter to be as safe and breathable as possible, so you don't have to decide.

Most people don't know this, but the average mask filter is rated for 8-12 hours of cumulative use (they won't tell you this fact), but we made ours with the highest quality material and it's rated for 16-24 hours of use depending on your surrounding air quality.

Thanks to the design, the material we used, and the individually wrapped packaging, the Aplu filter will stay effective for years, so you can stock up on the Aplu filter without worry.