Nu-Calgon iWave-R 4900-20 ION Generator - Atomic Filters

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Nu-Calgon iWave-R 4900-20 ION Generator


 Nu-Calgon iWave-R also know as iWave 4900-20

  • No Maintenance Air Purifier for Residential A/C Systems
  • Easy Mounting with Magnets 
  • i-WAVE-R_EA
  • For Duct Systems Up To 6 Tons (2400 Cfm) 
  • Universal Voltage Input - 24 VAC to 260 VAC
  • Reduces Allergens, Odors, Smoke, Static Electricity and Airborne Particles
  • Replaces / Supersedes similar ION Generators - Nu-Calgon / GPS Products iWave-R # iWave-R / 4900-20 / 490020 / iWaveR L82081 L82-081 iCleanR i-Clean-R

FREE SHIPPING! Ships next business day. Orders before 11 am Eastern ship same day(business days M-F)

With technology installed in over 100,000 applications, iWave-R or iWave 4900-20 is the world’s first self-cleaning, no maintenance needlepoint bi-polar ionization generator designed specifically for treating air in residential duct A/C systems.

Canadian Buyers ORDER HERE

Does iWave produce ozone?

As the air flows past the iWave-R, positive and negative ions actively purify the supply air, killing mold, bacteria and viruses in the coil and living space. The ionization process also reduces allergens, smoke and static electricity, as well as controlling odors (cooking, pet, VOCs) and other particles (no more sunbeams) in the air without creating ozone or any harmful byproducts. This is one reason why consumers consider iwave vs UV light(broad-spectrum) as a good choice.

Note: The iWave-R is designed to be a long-term IAQ investment, not requiring ongoing maintenance of replacing expensive parts every year or two like other market approaches. The ion emitters (fiber brushes) used in the iWave-R are designed to where they could easily be replaced after many years in service; in the unlikely event they ever needed to be replaced. Replacement requires a Phillips screwdriver and a few minutes; contact Nu-Calgon for further questions.

Limited Warranty on iWave Air Purifier- From the Manufacturer

Nu-Calgon offers a three-year limited warranty on all iWave products that covers any defects in material during normal use. If a warranty claim is made within the three-year period, proof of purchase and proof of installation by a licensed HVAC or electrical contractor must be provided for a valid claim. This warranty does not cover labor, return shipping charges or damage from improper installation or improper voltage usage. The iWave warranty begins on the date that the unit was installed.   Installation of an iWave unit by any person other than a licensed HVAC or electrical contractor will void the warranty. For additional warranty questions, contact Nu-Calgon

Has the iWave been Tested? 

New Calgon has recently tested the iwave. The results can be seen at the link for test results.

Iwave Test results on Iwave 

Note : Images are for illustration only. Actual item may vary.

iWave-r vs REME HALO model REME-H

The main benefits to the iWave-r vs the REME HALO model REME-H is the iwave does  not produce any Ozone and does not require bulb changes for maintenance. The REME HALO Model REME-H requires a replacement cell after 2 years. Note the new REME HALO LED does not produce any Ozone and the bulb does last much longer.

Iwave Reviews

If you are wondering where to buy the iwave-r. Check out iWave reviews from our customers below and see why Atomic Filters is the best place to buy the iWave. 


Customer Reviews

Based on 33 reviews
Supper easy to install

Very happy with this unit, installed myself with video search online and left the fan to the furnace run for 72hours as suggested and cleaned the filter again at which time did noticed had collected more dust particals in the filter. Also, my wife likes to burn sented candles and have noticed a reduction eliminating the use of candles

Very easy to install

It’s only been a week and a half since I installed it too early to tell how it works

Nice unit. Easy to install

Have noticed less dust build up and cooking odors reduction. So far so good. Installed myself.

Easy home owner install

Couldn’t have made this easier to install especially if you have room inside furnace enclosure and don’t have to do any cutting. Easy hook up with minimal experience.


Cannot find someone to install. Handyman unsure how to and heating contractor unwilling since they did not provide (and thus cannot mark up cost). Trying to return pricey item. No success yet