Austin Air Healthmate Plus Replacement Filter. The Austin Air HealthMate Plus Filter is designed to fit into all our standard size Austin Air Purifiers. This filter has all the design features as the standard HealthMate Filter with an additional additive of potassium iodide. This mineral combined with the activated carbon and zeolite, delivering greater capacity for removal of chemical gases, or Volatile Organic Compounds (VOCs), thus improving relief for people for the severely chemical sensitive and effectiveness in highly contaminated air spaces. It is recommended for people who have heavy air quality problems and those that are chemical sensitive. Materials: hepa carbon. Dimensions: 13.75L x 13.75W x 14.5H Weight: 22 lbs.