If you choose to use a reusable air filter in your car, you'll need to learn how to clean it and reapply the oil. If you prefer to wash and oil your filter rather than replace it, reusable filters ...

Actural Size: 19.75x19.75x0.75***Package Included: 1 Filter + 1 Frame Keep House Air Clean ... reusable, long-lasting, and environmentally conscious. One AirThreds Equals to 36 single-use Air Filters.