Comtech Research

Established 1989
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  Comtech Research, LLC, Air Purifying & Cleaning Systems & Equipment, South Greenfield, MO


Member - Mt. Vernon, MIssouri Chamber of CommerceMember
Mt. Vernon, Missouri
Chamber of Commerce


Rated Family Safe by Internet Content Rating Association


Appreciative and Experienced Staff

Complete Service

Dependable Quality


60-Day Satisfaction
Guarantee & Warranty

Satisfaction Guaranteed - click to view details

Privacy and Safe Shopping Guarantees

October 22, 2017

  • Most products are in stock for immediate shipment.
  • New Dealer (Website under development).

March 6, 2017
New server is now operational. :-)

January 28, 2017
We are in the process of moving this website to a faster and more secure 64-bit server.

You may experience some temporary problems with this website during this transition, such as:

  • Pages not displaying
  • Online ordering problems
  • Slow e-mail or other issues

If you experience this, please contact us. Our toll-free number is 866-466-4937 (1-866-IONIZER) Monday through Friday between 9 AM and 5 PM Central time.

August 2016
We have upgraded the security on this site to SHA-2, which adds yet another layer of protection to our customers' information. A few older computers may not display the secure pages on this site ("https://") correctly because of this. For example, if you are using Windows XP, you MUST have the latest Service Pack installed.

Possible intermittent online ordering issue, especially with some Apple mobile devices: After secure payment, in some cases the invoice is not displayed or sent to the customer. If you experience that, kindly let us know and place your order over the phone. Office Hours and Contact Info

MOST online orders are working just fine.

  1. We are FINALLY caught up with the backlog of IG-133* Happy Machine™ ionizer orders! We now have most models in stock for immediate shipment.
  2. YouTube video of the IG-133DG ionizer with DustGrabber™ eliminating smoke from a confined area.

Everyone in the shop is now working full-time.

Reversed order of notices below: moved oldest to bottom and newest on top (and deleted irrelevant notices).

May 2016

The wearable A302 ionizer is finally back in stock! (We have had them on order since early January.)

We now also have a different brand of wearable ionizer. We feel it will be superior for those who are sensitive to odors. Please e-mail us for details.

December 2015 - OLD NEWS

  • These are built by hand here in Missouri.
  • Please contact us if you have any questions or would like more information.
  • Your tracking number will be sent when they are ready to ship, from or

... MORE unexpected publicity (interest generated in negative ion generators from a late-nite radio program about negative ions on Coast To Coast AM) We received more orders the week following that show than we typically get in a month!

We have stepped up production of our Happy Machines™ (IG-133-series ionizers) again. We now have a full day shift and a partial evening shift.


Click here for Normal office hours, Contact information,
Telephone numbers, and Mailing address.


About our company


Comtech Research is located in the Ozark Mountains in Rural South Central Missouri.

Comtech Research LLC

Innovation Comtech Research Internet consulting and web page design

Toll-Free Order Line: 1-866-IONIZER (1-866-466-4937)
Offices: 1-417-452-2237 Monday to Friday 9-5 Central time

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Comtech Research, LLC, Air Purifying & Cleaning Systems & Equipment, South Greenfield, MO

In Business Since 1989