The D-928 filter screen (hepa) of dog vacuum cleaner smells, how to deal with it?

I have the same problem. The reason is very simple, that is, the filter screen is dirty and not cleaned. I have washed it several times before, and there is no problem with washing it with water. Washing the filter screen in winter may be due to the cold weather and slow drying, which allows bacteria to breed. It tastes like smelly socks. Washing with washing powder and detergent still tastes a little bit. The fundamental solution may only be to change the filter. A strainer seems to be around 40 yuan. In fact, it is better to buy a more advanced model without consumables.