- Using doubled up 600-thread count pillowcases or flannel pajamas, you could make a mask that provides up to 60 percent filtration.
- Other materials that can be used to filter out dangerous particles include HEPA filters, vacuum cleaner bags, and quilter’s cotton.
- But be careful of materials like household air filters that may contain fiberglass. They could still damage your lungs, even if they filter out virus particles.
