any compensation for the tenant?

[Pavan Krishna]

one of my homes has rodent problem.  we are actively working with pest control to take care of them.  however, due to strong odor, my tenants have temporarily found a hotel room to stay until the odor comes down. 

they have not asked me for money/compensation.  however, i would like to acknowledge and share their pain.  what is appropriate in this scenario?  currently i'm thinking of returning the prorated rent during their hotel stay.  for example, if they stay in hotel for 2 nights, return the rent for 2 * (monthly rent/30).  please let me know, if there is a different way to think about.  eager to learn from the collective experience of this group.