View cart “NCCO1804 Air Filter” has been added to your cart. NCCO1702/1701 Air Filter$24.99 HEPA Filter x 2 for NCCO1702 HEPA Filter x 1 for NCCO1701 *Change HEPA filter in every 6-18 months. Lifetime may vary in different environment NCCO1702/1701 Air Filter quantity Add to cart Categories: b-MOLA Products, RHT Products Related products Add to cart RHT RH490C Ceiling Type $5,338.00 Add to cart RHT RH220 Wall Mount $3,668.00 Add to cart NCCO1804 Air Filter $17.99