According to a January 2022 Human Rights First report on the “Remain in Mexico” (RMX) program in El Paso, “Some migrants and asylum seekers said CBP officers refused to provide masks to detainees who requested them and that some CBP officers were themselves not consistently wearing personal protective equipment.” In San Diego in early January 2022, one man “reported that CBP officers refused to provide him a mask when he requested one.”
— A Shameful Record: Biden Administration’s Use of Trump Policies Endangers People Seeking Asylum (New York: Human Rights First: January 13, 2022) https://www.humanrightsfirst.org/resource/shameful-record-biden-administration-s-use-trump-policies-endangers-people-seeking-asylum.