![Nu-Calgon 4900-20 iWave-R No-Maintenance Bi-Polar Ionizing Air Purifier for Residential Air Conditioning Systems Nu-Calgon 4900-20 iWave-R No-Maintenance Bi-Polar Ionizing Air Purifier for Residential Air Conditioning Systems](https://www.discountfurnacefilter.com/media/catalog/product/cache/fcd2513c28b2c877d94bbcd70d1912a4/n/u/nucalgon4900-20.jpg)
Nu-Calgon 4900-20 iWave-R No-Maintenance Bi-Polar Ionizing Air Purifier for Residential Air Conditioning Systems
![Amazon.com: Nu-Calgon 4900-20 - iWave-R Self-Cleaning Bi-Polar Ionization ION Generator for 6 Tons, 2400 CFM, 24-260 VAC (1) : Home & Kitchen Amazon.com: Nu-Calgon 4900-20 - iWave-R Self-Cleaning Bi-Polar Ionization ION Generator for 6 Tons, 2400 CFM, 24-260 VAC (1) : Home & Kitchen](https://m.media-amazon.com/images/I/41bYOWAF1uL.jpg)
Amazon.com: Nu-Calgon 4900-20 - iWave-R Self-Cleaning Bi-Polar Ionization ION Generator for 6 Tons, 2400 CFM, 24-260 VAC (1) : Home & Kitchen
![Nu-Calgon 4900-35 - iWave-M Flexible ION Generator for Ductless & Other HVAC Systems : Amazon.ca: Home Nu-Calgon 4900-35 - iWave-M Flexible ION Generator for Ductless & Other HVAC Systems : Amazon.ca: Home](https://m.media-amazon.com/images/I/41j71J7Zy6L._AC_UF1000,1000_QL80_.jpg)
Nu-Calgon 4900-35 - iWave-M Flexible ION Generator for Ductless & Other HVAC Systems : Amazon.ca: Home
![Nu-Calgon on Twitter: "iWave Air Cleaners use positive and negative ions to actively purify the air, killing mold, bacteria, and viruses in the coil and living space. #aircleaner #airpurifier https://t.co/Fr4uz6UoHK https://t.co/DjoAeFXz02" / Nu-Calgon on Twitter: "iWave Air Cleaners use positive and negative ions to actively purify the air, killing mold, bacteria, and viruses in the coil and living space. #aircleaner #airpurifier https://t.co/Fr4uz6UoHK https://t.co/DjoAeFXz02" /](https://pbs.twimg.com/media/DobWx_eXkAAKyNe.jpg)