1、Applicable Models: The vacuum filter is suitable for ZSH720 vacuum cleaners. This means that if you own this model, you can use the Vacuum Filter to replace your old filter or as a spare filter. 2、Performance: This filter can effectively filter all kinds of small particles such as sawdust, dust, garbage debris from workshop, garage and basement. 3、Effectively Solving Problem: When you feel that your vacuum cleaner's cleaning power has become weaker, you may consider whether the filter is the problem. At this time you can replace the filter with a new one to restore the cleaning performance of your vacuum cleaner. 4、Cleaning Method: The vacuum filter can be cleaned by using a nylon brush to help remove dust. This efficient cleaning method maintains the performance of the filter and extends its life. 5、Affordable: Cleaning a vacuum filter does not require a lot of time and effort. Compared to purchasing a new filter and vacuum cleaner, this method is more convenient and time saving.