Hand of senior female patient holding a bed rail.An advisory issued in June warns people against using a series of adult portable bed rail models after at least three people — including one in a nursing home and another in an assisted living facility — were entangled in them and died of asphyxia.

The U.S. Consumer Product Safety Commission named the following 10 models of Mobility Transfer Systems adult portable bed rails in which it says users may become trapped, resulting in serious injury or death:

The Commission’s advisory “urges consumers to immediately stop use, disassemble, and dispose of” these bed rails, which have been on the market since 1992 and available through such online retailers as Walmart.com and Amazon.com.

Users can report any incidents related to these rails at www.SaferProducts.gov.