A filter can be powerful.Logical formLearned from37 sentences. Filters can be broadband.Logical formLearned from36 sentences. A person may change a filter.Logical formLearned from36 sentences. A filter can be circular.Logical formLearned from36 sentences. A filter can be washable.Logical formLearned from36 sentences. A filter can be reusable.Logical formLearned from36 sentences. (Air filters) may pertain-to a person.Logical formLearned from36 sentences. A filter can be permanent.Logical formLearned from36 sentences. A filter can be supersonic.Logical formLearned from36 sentences. Filters can be steerable.Logical formLearned from36 sentences. A (frequency response) may pertain-to a filter.Logical formLearned from35 sentences. A system can be constituted-of-or-filled-with filters.Logical formLearned from35 sentences. Filters can be efficient.Logical formLearned from35 sentences. A filter can be digital.Logical formLearned from35 sentences. Filters can be permanent.Logical formLearned from35 sentences.