Austin Air HealthMate Juniorr Pre-Filter 3-Pack is Austin Air original PermaFilt replacement pre-filter.
Austin Air HealthMate Junior Pre-Filter fits Austin Air HM200 Junior 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 Junior Pre-Filter is available in two colors:

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

Austin Air pre-filter is a first stage of Austin air purifiers air filtration system.
Austin Air pre-filter traps large dust and dirt particles including lint, hair, etc.
Pre-filter protects 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.
The Austin Air Junior pre-filter's lifetime under normal conditions - up to 12 months.