How can I search my entire list using list.js, even when filters are engaged?

I have a working, searchable list with HTML and list.js. I also have 3 filters that pare the list down to a smaller list based on some information within each list item. How can I clear my filters when I start typing in the search box? Not fuzzy, just basic instant search.

    var options = {
    valueNames: ['name', 'description', 'category']
};

var featureList = new List('qme-list', options);

/* 1 = Qualifying expense 2 = Potentially qualifying epxense 3= Not a qualifying expense*/

$('#filter-1').click(function () {
    featureList.filter(function (item) {
        if (item.values().category == "1") {
            return true;
        } else {
            return false;
        }
    });
    return false;
});

$('#filter-2').click(function () {
    featureList.filter(function (item) {
        if (item.values().category == "2") {
            return true;
        } else {
            return false;
        }
    });
    return false;
});

$('#filter-3').click(function () {
    featureList.filter(function (item) {
        if (item.values().category == "3") {
            return true;
        } else {
            return false;
        }
    });
    return false;
});

$('#filter-none').click(function () {
    featureList.filter();
    return false;

});