From 2073800ddf558364395341ea6d6096d35fcd691a Mon Sep 17 00:00:00 2001
From: Paloma GR <palomagr@mit.edu>
Date: Sun, 5 Apr 2020 16:11:47 -0400
Subject: [PATCH] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 1da801d..688ff05 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ We are also working with wood pulp based fabrics, that will act as filter of big
 ### Fabricating the filter
 
 Due to the density of the celulose raw material, we pulverized it and compact into a breathable filter of about 5mm thickness.
-The filter needs to be tested to evaluate its filtering capacity and porosity.
+The filter needs to be tested to evaluate its filtering capacity and porosity. The filter has three layers. 
 
 <img src="images/l1_2.jpg"  width="200" >
 <img src="images/l6.jpg"  width="200" >
-- 
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