An all-steel purifier with about fifteen pounds of treated carbon and a five-year filter. What it is built to do, and one material fact to know first.
The Austin Air HealthMate Plus is an all-steel purifier carrying about fifteen pounds of carbon and zeolite behind a medical-grade true HEPA, with a filter the manufacturer rates for five years, at around $700. The steel housing does not off-gas.
One material fact comes first: the carbon is impregnated with potassium iodide to improve chemical capture, and the filter is a single integrated unit, so that media cannot be swapped out. Anyone who has reacted to iodine compounds or treated filter media before should know that before buying.
The Institute sells nothing and rates nothing; this page reports what the unit is, how it is built, and what it is designed to do.
This page profiles one brand in reporting voice: what the unit is, how it is built, and what it is designed to do. It does not rank units or name one to buy. How reactive you are, your dominant triggers and your room size all change what fits; the Air Filters & Purifiers guide walks the general decision before naming any product.
Four stages: two pre-filters, roughly 15 lb of carbon and zeolite impregnated with potassium iodide, and a medical-grade true HEPA. The manufacturer states the potassium iodide improves formaldehyde capture. A correction to a common misstatement: the media is potassium iodide with zeolite and carbon, not potassium permanganate.
The potassium-iodide treatment is a fixed part of the one integrated filter; unlike the AllerAir or Airpura designs there is no way to change the carbon bed. Someone who has reacted to iodine compounds or to treated media has that to weigh; someone who wants a carbon bed they can choose has a different design to look at.
The integrated filter is the trade-off: the lowest long-term cost of the units profiled here, and no way to tune or swap the media. The design suits living areas; a swappable-bed unit gives more control for a bedroom.
The unit comparison is on the Air Filters & Purifiers guide. For masks and portable protection away from home, see Personal Air Filters for MCS.