Prophylactics for washer smell: TechnoFresh, WasherFan, etc.
Prophylactic measures for front-loading washers: preventing mold, mildew, and bacterial growth.
A chemical treatment which requires continuous use, providing a prophylactic approach to minimizing mold, mildew, and bacterial growth throughout the washer's internal plumbing.
The manufacturer's site has ample information in its approach (much of which I personally found to be very convincing), and if nothing else, provides an informative read. They also mention two other popular products, which unlike their own, are designed to be used periodically--so-called "shock" treatments: Affresh, and Purewasher (Smelly Washer).
B. Washer Fan
Another prophylactic measure: a small fan which attaches to the washer vent, thereby reducing the humidity in the washer, which I'm also considering (and, will probably buy for our new LG washer/dryer combo unit coming next week). In a recent "Washer Fan" thread, some commented that it was too expensive for what it is. I did a brief search of CPU cooler fans at newegg.com, and between all the soldering, shrink-wrap wiring, and other home-engineering required to make one myself, I think it's just easier to pop for the $60 and get an already-made (and, field-tested), Washer Fan.
Periodic treatments (after-the-fact, "non-prophylactic"):
1. Chlorine beach/sanitary cycle.
2. Baking soda/vinegar (i.e., changing pH).
3. Affresh (a product of Whirlpool USA).
4. Smelly Washer (formally, Purewasher)
After reading through some of the material on the TechnoFresh site, I searched GW and found one member with actual experience with the product. Below, I'll quote the two comments I found here regarding the product.
This post was edited by studio460 on Tue, Jun 11, 13 at 6:10