There are a number of products and teatments available and I've been looking into this recently as an alternative to ending up in a wheelchair.
The use of UV-C light, is driving at least three franchises and I've spent some time investigating the reality of this method.
As a result.....I am about to start offering a deinfestation service for, mattresses, drapes, pillows, etc.
What surprised me, was the efectiveness of the method and the fact that, equipment is inexpensive and easy to use............but, there are h & s issues, which must be observed.
Beyond the UV treatment, which is a surface treatment, there are no safe, or effective spray, type, products which will effectively control air borne ellergens, but there are cabinet type products which act like air filters with UV rather than forced filtration.
I am actively looking at this option.
rob m