diff --git a/examples/js/postprocessing/EffectComposer.js b/examples/js/postprocessing/EffectComposer.js
index 9bde2dc68f7b1828c1b42f66bcf5e5d79fc5378d..7bd74d98688f1ec048713d2c27bbe4b8dd4a8200 100644
--- a/examples/js/postprocessing/EffectComposer.js
+++ b/examples/js/postprocessing/EffectComposer.js
@@ -279,6 +279,12 @@ THREE.Pass.FullScreenQuad = ( function () {
 
 	Object.assign( FullScreenQuad.prototype, {
 
+		dispose: function () {
+
+			this._mesh.geometry.dispose();
+
+		},
+
 		render: function ( renderer ) {
 
 			renderer.render( this._mesh, camera );
diff --git a/examples/js/postprocessing/SSAOPass.js b/examples/js/postprocessing/SSAOPass.js
index 77c5ee22e443e792171ce6b386a60eb10d993695..ad83dc3253c39270076051685d6f9c14b1a561e9 100644
--- a/examples/js/postprocessing/SSAOPass.js
+++ b/examples/js/postprocessing/SSAOPass.js
@@ -160,6 +160,10 @@ THREE.SSAOPass.prototype = Object.assign( Object.create( THREE.Pass.prototype ),
 		this.copyMaterial.dispose();
 		this.depthRenderMaterial.dispose();
 
+		// dipsose full screen quad
+
+		this.fsQuad.dispose();
+
 	},
 
 	render: function ( renderer, writeBuffer /*, readBuffer, deltaTime, maskActive */ ) {
diff --git a/examples/jsm/postprocessing/Pass.d.ts b/examples/jsm/postprocessing/Pass.d.ts
index ea765f5428c352b869092240cbb8f84d1792e31d..a0247cddb3bd4a9bb11bea7f6397cc64f3ec7b29 100644
--- a/examples/jsm/postprocessing/Pass.d.ts
+++ b/examples/jsm/postprocessing/Pass.d.ts
@@ -23,6 +23,7 @@ export namespace Pass {
 		constructor( material?: Material );
 
 		render( renderer: WebGLRenderer ): void;
+		dispose(): void;
 
 		material: Material;
 
diff --git a/examples/jsm/postprocessing/Pass.js b/examples/jsm/postprocessing/Pass.js
index 047c42c7453e2f4d1857f8bee279e6106c2757f9..033ade32432db7409edb2bc2ce8a77ffb8b2b67b 100644
--- a/examples/jsm/postprocessing/Pass.js
+++ b/examples/jsm/postprocessing/Pass.js
@@ -63,6 +63,12 @@ Pass.FullScreenQuad = ( function () {
 
 	Object.assign( FullScreenQuad.prototype, {
 
+		dispose: function () {
+
+			this._mesh.geometry.dispose();
+
+		},
+
 		render: function ( renderer ) {
 
 			renderer.render( this._mesh, camera );
diff --git a/examples/jsm/postprocessing/SSAOPass.js b/examples/jsm/postprocessing/SSAOPass.js
index 10dd4bfcc6c9c86a9da20dcbb9fee022c95188f0..d012591dfa8c1b4f774eb95507b03acd68b9e4c1 100644
--- a/examples/jsm/postprocessing/SSAOPass.js
+++ b/examples/jsm/postprocessing/SSAOPass.js
@@ -190,6 +190,10 @@ SSAOPass.prototype = Object.assign( Object.create( Pass.prototype ), {
 		this.copyMaterial.dispose();
 		this.depthRenderMaterial.dispose();
 
+		// dipsose full screen quad
+
+		this.fsQuad.dispose();
+
 	},
 
 	render: function ( renderer, writeBuffer /*, readBuffer, deltaTime, maskActive */ ) {