A provider is discharging a client with a prescription for home oxygen therapy. The nurse should reinforce which of the following instructions with the client and his family? (Select all that apply.)

Cleanse the mask or collar with soapy water every other day.

Post "no smoking" warning signs at home in a prominent location.

Make sure the straps on the mask are secure but not too tight.

Check the tops of his ears regularly for skin breakdown.

Apply petroleum jelly around and inside the nares.