COVID-19: Masks

Masks are Required for All STEM Prep Staff, Students, and Visitors

Masks are currently strongly recommended indoors on all STEM Prep campuses as well as outdoors in crowded settings.

For more information, visit the Los Angeles County Department of Public Health’s website.

Mask Recommendations

Know which Masks Provide the Best Protection Against COVID-19
Poor Good Better Best
  • Any cloth mask without a filter or layer of synthetic non-woven material
  • Bandanas
  • Gaiters
  • Cloth mask made of multiple layers that include a layer or filter made of synthetic non-woven material (such as melt-blown polypropylene) that fits well.
  • Medical mask-not fitted
  • Double mask (medical mask + cloth mask)
  • Medical mask – fitted with a brace or the knot & tuck technique
 Well-fitting respirators such as:

  • N95
  • KN95
  • KF94

Source: Los Angeles County Department of Public Health