Script to pull from directory containing spaces

I'm trying to pull Whatsup images from my android phone via ADB using the following script:

HOST_DIR=/myImageDirectory

DEVICE_DIR="/sdcard/WhatsApp/Media/WhatsApp\ Images"

echo started

for file in $(./adb shell ls $DEVICE_DIR)

do


 file=$(echo -e $file | tr -d "\r\n");
 # EOL fix

echo $file  


 ./adb pull $DEVICE_DIR/$file $HOST_DIR/;

done

The space in the source directory is escaped successfully for ls but not for pull. That is, i get the list of files but cannot pull them.
Here are 3 lines of the output:

IMG-20171101-WA0003.jpg

adb: error: remote object '/sdcard/WhatsApp/Media/WhatsApp\' does not exist

adb: error: remote object 'Images/IMG-20171101-WA0003.jpg' does not exist

What gives?