The Hunter 30973 is the correct replacement filter for the following air purifier models:
The Hunter 30973 - Germicidal Replacement Air Filter is a replacement HEPA air filter for the Hunter Model 30890, 30891, 30892, 30895, and 30405 Air Purifiers. This Hunter air filter replacement features HEPA-type media with electricity applied through its depth. This Hunter air purifier filter captures up to 99.9% of airborne particles and kills viruses, germs and bacteria. Hunter recommends that this HEPA air filter be replaced every six to twelve months, depending on use.
Hunter 30973 - Germicidal Replacement Air Filter specifications: