diff --git a/src/components/NavBar.vue b/src/components/NavBar.vue
index 778f6bfb9..2368e078e 100644
--- a/src/components/NavBar.vue
+++ b/src/components/NavBar.vue
@@ -25,27 +25,17 @@ const pinnedModulesRef = ref();
 
 <template>
     <QHeader class="bg-dark" color="white" elevated>
-        <QToolbar class="q-py-sm q-px-md">
-            <QBtn
-                @click="stateStore.toggleLeftDrawer()"
-                icon="menu"
-                class="q-mr-sm"
-                round
-                dense
-                flat
-            >
+        <QToolbar
+            class="q-py-sm q-px-md"
+            :class="{ 'q-gutter-x-sm': !quasar.platform.is.mobile }"
+        >
+            <QBtn @click="stateStore.toggleLeftDrawer()" icon="menu" round dense flat>
                 <QTooltip bottom anchor="bottom right">
                     {{ t('globals.collapseMenu') }}
                 </QTooltip>
             </QBtn>
             <RouterLink to="/">
-                <QBtn
-                    class="q-ml-xs"
-                    color="primary"
-                    flat
-                    round
-                    v-if="!quasar.platform.is.mobile"
-                >
+                <QBtn color="primary" flat round v-if="!quasar.platform.is.mobile">
                     <QAvatar square size="md">
                         <QImg
                             src="~/assets/salix_icon.svg"
diff --git a/src/components/common/VnSelectFilter.vue b/src/components/common/VnSelectFilter.vue
index 0ceabc87d..2a3ee6161 100644
--- a/src/components/common/VnSelectFilter.vue
+++ b/src/components/common/VnSelectFilter.vue
@@ -15,6 +15,10 @@ const $props = defineProps({
         type: String,
         default: '',
     },
+    isClearable: {
+        type: Boolean,
+        default: true,
+    },
 });
 const { optionLabel, options } = toRefs($props);
 const myOptions = ref([]);
@@ -84,7 +88,7 @@ const value = computed({
         fill-input
         ref="vnSelectRef"
     >
-        <template #append>
+        <template v-if="isClearable" #append>
             <QIcon name="close" @click.stop="value = null" class="cursor-pointer" />
         </template>
         <template v-for="(_, slotName) in $slots" #[slotName]="slotData">
diff --git a/src/components/ui/VnFilterPanel.vue b/src/components/ui/VnFilterPanel.vue
index d78c3ba13..34d24a848 100644
--- a/src/components/ui/VnFilterPanel.vue
+++ b/src/components/ui/VnFilterPanel.vue
@@ -1,5 +1,5 @@
 <script setup>
-import { onMounted, ref, computed } from 'vue';
+import { onMounted, ref, computed, watch } from 'vue';
 import { useI18n } from 'vue-i18n';
 import { useArrayData } from 'composables/useArrayData';
 import toDate from 'filters/toDate';
@@ -41,15 +41,11 @@ onMounted(() => {
 
 const isLoading = ref(false);
 async function search() {
-    for (const param in userParams.value) {
-        if (userParams.value[param] === '' || userParams.value[param] === null) {
-            delete userParams.value[param];
-            delete store.userParams[param];
-        }
-    }
-    const params = { ...userParams.value };
     isLoading.value = true;
-    await arrayData.addFilter({ params });
+    const params = { ...userParams.value };
+    const { params: newParams } = await arrayData.addFilter({ params });
+    userParams.value = newParams;
+
     if (!props.showAll && !Object.values(params).length) store.data = [];
 
     isLoading.value = false;
@@ -78,10 +74,11 @@ async function clearFilters() {
 const tags = computed(() => {
     const params = [];
 
-    for (const param in store.userParams) {
+    for (const param in userParams.value) {
+        if (!userParams.value[param]) continue;
         params.push({
             label: param,
-            value: store.userParams[param],
+            value: userParams.value[param],
         });
     }
 
@@ -89,8 +86,7 @@ const tags = computed(() => {
 });
 
 async function remove(key) {
-    delete userParams.value[key];
-    delete store.userParams[key];
+    userParams.value[key] = null;
     await search();
 }
 
@@ -200,7 +196,7 @@ function formatValue(value) {
 </template>
 
 <i18n>
-es: 
+es:
     No filters applied: No se han aplicado filtros
     Applied filters: Filtros aplicados
     Remove filters: Eliminar filtros
diff --git a/src/components/ui/VnPaginate.vue b/src/components/ui/VnPaginate.vue
index d21d073f2..c75761462 100644
--- a/src/components/ui/VnPaginate.vue
+++ b/src/components/ui/VnPaginate.vue
@@ -50,6 +50,10 @@ const props = defineProps({
         type: Boolean,
         default: true,
     },
+    exprBuilder: {
+        type: Function,
+        default: null,
+    },
 });
 
 const emit = defineEmits(['onFetch', 'onPaginate']);
@@ -68,6 +72,7 @@ const arrayData = useArrayData(props.dataKey, {
     limit: props.limit,
     order: props.order,
     userParams: props.userParams,
+    exprBuilder: props.exprBuilder,
 });
 const store = arrayData.store;
 
diff --git a/src/composables/useArrayData.js b/src/composables/useArrayData.js
index 348c8e23f..6fcca4722 100644
--- a/src/composables/useArrayData.js
+++ b/src/composables/useArrayData.js
@@ -2,6 +2,7 @@ import { onMounted, ref, computed } from 'vue';
 import { useRouter, useRoute } from 'vue-router';
 import axios from 'axios';
 import { useArrayDataStore } from 'stores/useArrayDataStore';
+import { buildFilter } from 'filters/filterPanel';
 
 const arrayDataStore = useArrayDataStore();
 
@@ -43,6 +44,7 @@ export function useArrayData(key, userOptions) {
             'skip',
             'userParams',
             'userFilter',
+            'exprBuilder',
         ];
         if (typeof userOptions === 'object') {
             for (const option in userOptions) {
@@ -68,16 +70,27 @@ export function useArrayData(key, userOptions) {
             skip: store.skip,
         };
 
-        Object.assign(filter, store.userFilter);
-        Object.assign(store.filter, filter);
+        let exprFilter;
+        let userParams = { ...store.userParams };
+        if (store?.exprBuilder) {
+            const where = buildFilter(userParams, (param, value) => {
+                const res = store.exprBuilder(param, value);
+                if (res) delete userParams[param];
+                return res;
+            });
+            exprFilter = where ? { where } : null;
+        }
 
+        Object.assign(filter, store.userFilter, exprFilter);
+        Object.assign(store.filter, filter);
         const params = {
             filter: JSON.stringify(store.filter),
         };
 
-        Object.assign(params, store.userParams);
+        Object.assign(params, userParams);
 
         store.isLoading = true;
+
         const response = await axios.get(store.url, {
             signal: canceller.signal,
             params,
@@ -126,9 +139,30 @@ export function useArrayData(key, userOptions) {
 
     async function addFilter({ filter, params }) {
         if (filter) store.userFilter = Object.assign(store.userFilter, filter);
-        if (params) store.userParams = Object.assign(store.userParams, params);
+
+        let userParams = Object.assign({}, store.userParams, params);
+        userParams = sanitizerParams(userParams, store?.exprBuilder);
+
+        store.userParams = userParams;
 
         await fetch({ append: false });
+        return { filter, params };
+    }
+
+    function sanitizerParams(params) {
+        for (const param in params) {
+            if (params[param] === '' || params[param] === null) {
+                delete store.userParams[param];
+                delete params[param];
+                if (store.filter?.where) {
+                    delete store.filter.where[Object.keys(store?.exprBuilder(param))[0]];
+                    if (Object.keys(store.filter.where).length === 0) {
+                        delete store.filter.where;
+                    }
+                }
+            }
+        }
+        return params;
     }
 
     async function loadMore() {
diff --git a/src/filters/filterPanel.js b/src/filters/filterPanel.js
new file mode 100644
index 000000000..ee91e6749
--- /dev/null
+++ b/src/filters/filterPanel.js
@@ -0,0 +1,94 @@
+/**
+ * Passes a loopback fields filter to an object.
+ *
+ * @param {Object} fields The fields object or array
+ * @return {Object} The fields as object
+ */
+function fieldsToObject(fields) {
+    let fieldsObj = {};
+
+    if (Array.isArray(fields)) {
+        for (let field of fields) fieldsObj[field] = true;
+    } else if (typeof fields == 'object') {
+        for (let field in fields) {
+            if (fields[field]) fieldsObj[field] = true;
+        }
+    }
+
+    return fieldsObj;
+}
+
+/**
+ * Merges two loopback fields filters.
+ *
+ * @param {Object|Array} src The source fields
+ * @param {Object|Array} dst The destination fields
+ * @return {Array} The merged fields as an array
+ */
+function mergeFields(src, dst) {
+    let fields = {};
+    Object.assign(fields, fieldsToObject(src), fieldsToObject(dst));
+    return Object.keys(fields);
+}
+
+/**
+ * Merges two loopback where filters.
+ *
+ * @param {Object|Array} src The source where
+ * @param {Object|Array} dst The destination where
+ * @return {Array} The merged wheres
+ */
+function mergeWhere(src, dst) {
+    let and = [];
+    if (src) and.push(src);
+    if (dst) and.push(dst);
+    return simplifyOperation(and, 'and');
+}
+
+/**
+ * Merges two loopback filters returning the merged filter.
+ *
+ * @param {Object} src The source filter
+ * @param {Object} dst The destination filter
+ * @return {Object} The result filter
+ */
+function mergeFilters(src, dst) {
+    let res = Object.assign({}, dst);
+
+    if (!src) return res;
+
+    if (src.fields) res.fields = mergeFields(src.fields, res.fields);
+    if (src.where) res.where = mergeWhere(res.where, src.where);
+    if (src.include) res.include = src.include;
+    if (src.order) res.order = src.order;
+    if (src.limit) res.limit = src.limit;
+    if (src.offset) res.offset = src.offset;
+    if (src.skip) res.skip = src.skip;
+
+    return res;
+}
+
+function simplifyOperation(operation, operator) {
+    switch (operation.length) {
+        case 0:
+            return undefined;
+        case 1:
+            return operation[0];
+        default:
+            return { [operator]: operation };
+    }
+}
+
+function buildFilter(params, builderFunc) {
+    let and = [];
+
+    for (let param in params) {
+        let value = params[param];
+        if (value == null) continue;
+        let expr = builderFunc(param, value);
+        if (expr) and.push(expr);
+    }
+    return simplifyOperation(and, 'and');
+}
+
+export { fieldsToObject, mergeFields, mergeWhere, mergeFilters, buildFilter };
diff --git a/src/pages/Claim/ClaimFilter.vue b/src/pages/Claim/ClaimFilter.vue
index 5918712fd..ac8f4f0db 100644
--- a/src/pages/Claim/ClaimFilter.vue
+++ b/src/pages/Claim/ClaimFilter.vue
@@ -3,6 +3,7 @@ import { ref } from 'vue';
 import { useI18n } from 'vue-i18n';
 import FetchData from 'components/FetchData.vue';
 import VnFilterPanel from 'src/components/ui/VnFilterPanel.vue';
+import VnSelectFilter from 'components/common/VnSelectFilter.vue';
 
 const { t } = useI18n();
 const props = defineProps({
@@ -60,7 +61,7 @@ const states = ref();
                         <QSkeleton type="QInput" class="full-width" />
                     </QItemSection>
                     <QItemSection v-if="workers">
-                        <QSelect
+                        <VnSelectFilter
                             :label="t('Salesperson')"
                             v-model="params.salesPersonFk"
                             @update:model-value="searchFn()"
@@ -79,7 +80,7 @@ const states = ref();
                         <QSkeleton type="QInput" class="full-width" />
                     </QItemSection>
                     <QItemSection v-if="workers">
-                        <QSelect
+                        <VnSelectFilter
                             :label="t('Attender')"
                             v-model="params.attenderFk"
                             @update:model-value="searchFn()"
@@ -98,7 +99,7 @@ const states = ref();
                         <QSkeleton type="QInput" class="full-width" />
                     </QItemSection>
                     <QItemSection v-if="workers">
-                        <QSelect
+                        <VnSelectFilter
                             :label="t('Responsible')"
                             v-model="params.claimResponsibleFk"
                             @update:model-value="searchFn()"
@@ -117,7 +118,7 @@ const states = ref();
                         <QSkeleton type="QInput" class="full-width" />
                     </QItemSection>
                     <QItemSection v-if="states">
-                        <QSelect
+                        <VnSelectFilter
                             :label="t('State')"
                             v-model="params.claimStateFk"
                             @update:model-value="searchFn()"
diff --git a/src/pages/Customer/CustomerFilter.vue b/src/pages/Customer/CustomerFilter.vue
index 113e0cc7c..c276b0d3e 100644
--- a/src/pages/Customer/CustomerFilter.vue
+++ b/src/pages/Customer/CustomerFilter.vue
@@ -3,6 +3,7 @@ import { ref } from 'vue';
 import { useI18n } from 'vue-i18n';
 import FetchData from 'components/FetchData.vue';
 import VnFilterPanel from 'src/components/ui/VnFilterPanel.vue';
+import VnSelectFilter from 'components/common/VnSelectFilter.vue';
 
 const { t } = useI18n();
 const props = defineProps({
@@ -63,7 +64,7 @@ const zones = ref();
                         <QSkeleton type="QInput" class="full-width" />
                     </QItemSection>
                     <QItemSection v-if="workers">
-                        <QSelect
+                        <VnSelectFilter
                             :label="t('Salesperson')"
                             v-model="params.salesPersonFk"
                             @update:model-value="searchFn()"
@@ -82,7 +83,7 @@ const zones = ref();
                         <QSkeleton type="QInput" class="full-width" />
                     </QItemSection>
                     <QItemSection v-if="provinces">
-                        <QSelect
+                        <VnSelectFilter
                             :label="t('Province')"
                             v-model="params.provinceFk"
                             @update:model-value="searchFn()"
@@ -91,6 +92,7 @@ const zones = ref();
                             option-label="name"
                             emit-value
                             map-options
+                            :input-debounce="0"
                         />
                     </QItemSection>
                 </QItem>
@@ -124,7 +126,7 @@ const zones = ref();
                             <QSkeleton type="QInput" class="full-width" />
                         </QItemSection>
                         <QItemSection v-if="zones">
-                            <QSelect
+                            <VnSelectFilter
                                 :label="t('Zone')"
                                 v-model="params.zoneFk"
                                 @update:model-value="searchFn()"
diff --git a/src/stores/useArrayDataStore.js b/src/stores/useArrayDataStore.js
index a17515592..223406a33 100644
--- a/src/stores/useArrayDataStore.js
+++ b/src/stores/useArrayDataStore.js
@@ -19,6 +19,7 @@ export const useArrayDataStore = defineStore('arrayDataStore', () => {
             order: '',
             data: ref(),
             isLoading: false,
+            exprBuilder: null,
         };
     }