When it comes to improving indoor air quality, products are available that really solve the problem.
I know a lot of people in the supply-house business who have shied away from the idea of promoting and selling products to improve indoor air quality because with so many false claims and ideas, a lot of it looks like a scam. However, many products are also available that actually do some good, and they are worth promoting.
First of all, let me point out that IAQ complaints and illnesses, most of which are real, don't always come from the same sources. Many people are allergic to dust mites and roach droppings, others are sensitive to chemicals, another group is affected by mold and some are allergic to everything. So promoting a single idea as a cure-all for IAQ problems is pretty silly. And that's where the scam comes in.