These carbon filter for face masks are made of quality carbon activated filters, non-woven and melt-blown polypropylene filter that can effectively filter out 99% of exhaust, pollen, smoke and dust. The filter is disposable. It is recommended to replace it and the recommended use time is 3-4 days. The 5-Layer Protection contains:
- Non-woven polypropylene filter to protect against micron-level dust
- Meltblown polypropylene filter layer
- Activated Carbon filter layer to prevent haze, industrial emissions, vehicle exhaust, etc.
- Non-woven cloth filter to protect against the density for smaller material
- A layer of soft cloth
After i sent a message complaining that i didn't receive my package, Mr Carroll stepped in and was so understanding and sympathetic to my needs. After 3 days my replacement order was made. It feels good to see a company still care about their customers.
I bought my mask and it came with a set of filters and when they ran out I used their company to get more. This time I had trouble finding them and these were the same filters for a better price.
They're fine, I'm glad to have had a chance to purchase them. If you plan to discontinue them, please make it known far and wide.
All is well. Good product, good service. Thank you,