You won't be able to receive push notifications, but if you touch the University of Houston logo in the Duo mobile app, it will give you a six-digit code to enter for authentication. 

You can also use a Hardware Token to generate a one-time passcode. Hardware Tokens can be purchased at the on campus CougarByte store and picked up from the UIT Support Center (Technology Commons ), room 58 located at the back entrance of the MD Anderson library.