Table 1.
Specifications of different masks.
| Images Under Microscope 1 | Material Used (Excluding Filter) |
Fabric Structure | Density/Inch | |
|---|---|---|---|---|
| Sample A |
|
Polypropylene | Non-woven | / |
| Sample B |
|
Cotton | Woven | 80 × 80 |
| Sample C |
|
Natural fiber, Chitosan | Knitted Interlining Woven |
70 × 140 |
| Sample D |
|
Conventional fiber, Aluminium, Platinum, Titanium | Knitted Woven |
50 × 60 |
| Sample E |
|
Polyester, Copper, Polyurethane | Knitted | 50 × 70 |
| Sample F |
|
Cotton | Woven Non-woven Knitted |
140 × 80 |
| Sample G |
|
Natural fiber, Copper | Knitted Non-woven Woven |
80 × 80 |
Image scale: 1/10 × 1/10 inch.