diff --git a/bower.json b/bower.json
index 288381b5..64685038 100644
--- a/bower.json
+++ b/bower.json
@@ -3,7 +3,7 @@
   "description":
     "JavaScript library for formatting input text content when you are typing",
   "keywords": ["cleave", "javascript", "html", "form", "input"],
-  "version": "1.6.0",
+  "version": "1.6.1",
   "author": {
     "name": "Max Huang",
     "email": "risonhuang@gmail.com",
diff --git a/doc/options.md b/doc/options.md
index 5cdd7bf8..c7de05fa 100644
--- a/doc/options.md
+++ b/doc/options.md
@@ -339,7 +339,9 @@ new Cleave('.my-input', {
 
 ### `numeralPositiveOnly`
 
-A `Boolean` value indicates if it only allows positive numeral value
+A `Boolean` or `String` value indicates if it only allows positive numeral value
+
+For `String` type, only the word `strict` in lowercase is available to indicate even `zero (0)` is not acceptable.
 
 **Default value**: `false`
 
@@ -351,9 +353,22 @@ new Cleave('.my-input', {
 ```
 
 ```js
+// -1234.56 entered
 // 1234.56
 ```
 
+```js
+new Cleave('.my-input', {
+    numeral: true,
+    numeralPositiveOnly: 'strict'
+});
+```
+
+```js
+// `zero` (-0.0000) entered
+// (blank)
+```
+
 ### `signBeforePrefix`
 
 A `Boolean` value indicates if the sign of the numeral should appear before the prefix.
diff --git a/package-lock.json b/package-lock.json
index 8b99a82a..651c086f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "cleave.js",
-  "version": "1.5.3",
+  "version": "1.6.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index c12a3a65..60bf975c 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "vanilla",
     "react"
   ],
-  "version": "1.6.0",
+  "version": "1.6.1",
   "files": [
     "src",
     "dist",
diff --git a/src/Cleave.js b/src/Cleave.js
index 37f3412d..0cf29cbd 100644
--- a/src/Cleave.js
+++ b/src/Cleave.js
@@ -6,6 +6,12 @@
  * @param {String | HTMLElement} element
  * @param {Object} opts
  */
+
+// polyfill Number.EPSILON
+if (Number.EPSILON === undefined) {
+  Number.EPSILON = Math.pow(2, -52);
+}
+
 var Cleave = function (element, opts) {
     var owner = this;
     var hasMultipleElements = false;
diff --git a/src/common/DefaultProperties.js b/src/common/DefaultProperties.js
index 224cd0f0..30f24deb 100644
--- a/src/common/DefaultProperties.js
+++ b/src/common/DefaultProperties.js
@@ -42,14 +42,14 @@ var DefaultProperties = {
         target.numeralDecimalScale = opts.numeralDecimalScale >= 0 ? opts.numeralDecimalScale : 2;
         target.numeralDecimalMark = opts.numeralDecimalMark || '.';
         target.numeralThousandsGroupStyle = opts.numeralThousandsGroupStyle || 'thousand';
-        target.numeralPositiveOnly = !!opts.numeralPositiveOnly;
+        target.numeralPositiveOnly = opts.numeralPositiveOnly;
         target.stripLeadingZeroes = opts.stripLeadingZeroes !== false;
         target.signBeforePrefix = !!opts.signBeforePrefix;
         target.tailPrefix = !!opts.tailPrefix;
 
         // others
         target.swapHiddenInput = !!opts.swapHiddenInput;
-        
+
         target.numericOnly = target.creditCard || target.date || !!opts.numericOnly;
 
         target.uppercase = !!opts.uppercase;
diff --git a/src/shortcuts/NumeralFormatter.js b/src/shortcuts/NumeralFormatter.js
index 626215e7..a391a744 100644
--- a/src/shortcuts/NumeralFormatter.js
+++ b/src/shortcuts/NumeralFormatter.js
@@ -16,7 +16,7 @@ var NumeralFormatter = function (numeralDecimalMark,
     owner.numeralIntegerScale = numeralIntegerScale > 0 ? numeralIntegerScale : 0;
     owner.numeralDecimalScale = numeralDecimalScale >= 0 ? numeralDecimalScale : 2;
     owner.numeralThousandsGroupStyle = numeralThousandsGroupStyle || NumeralFormatter.groupStyle.thousand;
-    owner.numeralPositiveOnly = !!numeralPositiveOnly;
+    owner.numeralPositiveOnly = numeralPositiveOnly;
     owner.stripLeadingZeroes = stripLeadingZeroes !== false;
     owner.prefix = (prefix || prefix === '') ? prefix : '';
     owner.signBeforePrefix = !!signBeforePrefix;
@@ -29,7 +29,7 @@ NumeralFormatter.groupStyle = {
     thousand: 'thousand',
     lakh:     'lakh',
     wan:      'wan',
-    none:     'none'    
+    none:     'none'
 };
 
 NumeralFormatter.prototype = {
@@ -39,6 +39,7 @@ NumeralFormatter.prototype = {
 
     format: function (value) {
         var owner = this, parts, partSign, partSignAndPrefix, partInteger, partDecimal = '';
+        var strStrict = 'strict'; // const
 
         // strip alphabet letters
         value = value.replace(/[A-Za-z]/g, '')
@@ -56,11 +57,16 @@ NumeralFormatter.prototype = {
             .replace(/\-/g, '')
 
             // replace the minus sign (if present)
-            .replace('N', owner.numeralPositiveOnly ? '' : '-')
+            .replace('N', (owner.numeralPositiveOnly === true
+              || owner.numeralPositiveOnly === strStrict) ? '' : '-')
 
             // replace decimal mark
             .replace('M', owner.numeralDecimalMark);
 
+      if (owner.numeralPositiveOnly === strStrict && parseFloat(value) < Number.EPSILON) {
+        value = '';
+      }
+
         // strip any leading zeros
         if (owner.stripLeadingZeroes) {
             value = value.replace(/^(-)?0+(?=\d)/, '$1');
@@ -76,7 +82,7 @@ NumeralFormatter.prototype = {
         } else {
             partSignAndPrefix = partSign;
         }
-        
+
         partInteger = value;
 
         if (value.indexOf(owner.numeralDecimalMark) >= 0) {
diff --git a/test/browser/numeral.js b/test/browser/numeral.js
index 0cb0a035..041435ef 100644
--- a/test/browser/numeral.js
+++ b/test/browser/numeral.js
@@ -71,6 +71,16 @@ describe('Numeral input field', function () {
         assert.equal(field.value, '1,234.56');
     });
 
+    it('should use defined strict positive only option', function () {
+        var cleave = new Cleave(field, {
+            numeral:             true,
+            numeralPositiveOnly: 'strict'
+        });
+
+        cleave.setRawValue('-0.000');
+        assert.equal(field.value, '');
+    });
+
     it('it should not strip leading zeroes', function () {
         var cleave = new Cleave(field, {
             numeral:             true,
diff --git a/test/fixtures/numeral.json b/test/fixtures/numeral.json
index 8799d12d..5d26b7bd 100644
--- a/test/fixtures/numeral.json
+++ b/test/fixtures/numeral.json
@@ -393,6 +393,24 @@
       ]
     ]
   },
+  {
+    "thousandsGroupStyle": "thousand",
+    "numeralPositiveOnly": "strict",
+    "numbers": [
+      [
+        "1234567",
+        "1,234,567"
+      ],
+      [
+        "-1234567",
+        "1,234,567"
+      ],
+      [
+        "-0.0000",
+        ""
+      ]
+    ]
+  },
   {
     "thousandsGroupStyle": "thousand",
     "stripLeadingZeroes": false,