Towels:<a href="#_ftn1" name="_ftnref1">[1]</a>
One may wash towels during Chol Hamoed. [However, this only applies if one is accustomed to switch the towels often<a href="#_ftn2" name="_ftnref2">[2]</a> and one does not have any more towels available.<a href="#_ftn3" name="_ftnref3">[3]</a>]
<a href="#_ftnref1" name="_ftn1">[1]</a> Michaber 534:1
<a href="#_ftnref2" name="_ftn2">[2]</a> M”B 534:4
<a href="#_ftnref3" name="_ftn3">[3]</a> See Rama ibid

Shulchan Aruch HaRav | Washing towels on Chol Hamoed

Towels:[1] One may wash towels during Chol Hamoed. [However, this only applies if one is accustomed to switch the towels often[2] and one does not have any more towels available.[3]] [1] Michaber 534:1 [2] M”B 534:4 [3] See Rama ibid