Austin Air HealthMate Junior PermaFilt Pre-Filter is original Austin Air replacement filter.
Austin Air HealthMate PermaFilt Junior Pre-Filter fits Austin Air smaller Junior series air purifiers including:

• Austin Air HealthMate Jnior HM200
• Austin Air Allergy Machine Junior HM205
• Austin Air HealthMate Plus Junior HM250
• Austin Air Baby's Breath HM205

Austin Air PermaFilt Pre-Filter is available in two colors:

• Black - for units in Black and Midnight Blue colors
• White - for units in Sandstone, White, Blue and Pink colors

The PermaFilt pre-filter traps large dust and dirt particles.
The PermaFilt pre-filter protects fine True HEPA filter from faster contamination and helps extend its lifetime.
The pre-filter can be vacuumed right through the metal mesh of the air purifier housing with a soft brush.
The pre-filter has to be replaced with new one when it gets very dirty or ruined.
The pre-filter's lifetime under normal residential conditions - up to 12 months.
The new PermaFilt pre-filter is included with the purchase of Austin Air replacement filer assembly.