Niagara Duct Cleaning Online Store Remember: what’s in your ducts winds up in your lungs. Are you ready to “breathe easy?” Call us today! Portable Air Purifiers $350.00 SANUVOX R+ In-Duct UV Air Treatment System Washable Self-Charging Electrostatic Air Conditioning and Furnace Filters $125.00 Whole-house Duct Mount HEPA Air Cleaner with ultraviolet light & photo catalytic filter $3,500.00