The MDA now endorses Compass Dental Gas Service. Compass provides comprehensive medical gas services, including system design, installation, and maintenance, tailored to meet the unique needs of every practice model. MDA members receive 15% off all services and one free Nitrous Oxide monitoring badge for any client who engages Compass for any service (includes lab fee and report — $80 value). Contact Compass Dental Gas Service at 888-833-2796.