3M P100 Filter Disk Magenta (Pair) 3m half face respirators These filter disks for 3m half-face respirators are economical, low-maintenance, easy to handle, and extremely lightweight. A comfortable fit is ensured with the 99% filter efficiency that meets the NIOSH P100-series. It is a long-lasting, lightweight material that enhances breathing comfort. It has a low profile design for comfort during long periods of time. Low breathing resistance due to the twin filter connection system protects against gasses, vapors, and particles. With these, you will get versatile protection against many oil and non-oil-based particulate contaminants.