3M 3N11CN filter cotton
1. Strongly filter extremely fine dust, and can reach virus-grade filtration effect! The filtration grade can reach R95 (can filter more than 95% of ultrafine dust below 0.03 microns, and can reach virus-grade filtration effect !)
2. Used together with 3M3200 mask, new 385CN cotton filter cover, 3301CN poison cartridge, it can effectively filter the paint mist generated in various painting operations. It can only be used as pre-filter cotton for painting operations.
3. When the pre-filter cotton is damaged, dirty, or the breathing resistance is noticeably increased, leave the contaminated area and replace it with a new one.