HEPA FILTER 18 IN X 24 IN X 6 IN Safety Express S6aa335ea5c574b9fa1e09a2db973c865g.png Amazon.com: Premium Model 14 True HEPA Replacement Filter for MA Series Air Purifiers Parts & Accessories Parts & Accessories Dust Collectors Dust Collector Parts Pearson Dental Supply Co.. Air treatment is heavily influenced by the extreme weather conditions of bushfires and floods. This puts a strain on asthma and allergies, causing breathing difficulties. This Air Purifier Filter 18. 6cm x 14. 2cm for the Air Purifier with CADR 170m h will prevent the interior risks of poor air quality. We recommend replacing the filters about every six to eight months, sooner or later depending on the frequency of use and pollution level in the environment. The filter replacement indicator will illuminate on the touch screen of the air purifier and an increased operating noise coupled with decreased airflow will signal it is time to change out the size 18. 6cm x 14. 2cm HEPA filter. Changing the filter is as simple as twisting open the bottom of the air purifier and swapping out the filter. Always ensure the packaging is removed first before inserting the filter into the air purifier. Its time to finally breathe easy with our replacement filters for our air purifiers. Features: For Air Purifier with CADR 170m h Filter: Pre filter + HEPA + activated carbon Measurements: 18. 6cm x 18. 6cm x 14. 2cm Weight: 360g Inclusions: 1 x HEPA filter GTIN: 9324008022613