Window guards stopping installation of air conditioner

[Ryan Brown]

Good evening,

I'm a landlord and have a tenant on the 2nd floor who has children. Therefore, it's required to put up window guards for their safety. Since the weather is getting warmer, they would like to use their window air conditioning.

The problem is that the window guards are not allowing the air conditioners to be installed. What options do I have to help my tenants to have some type or relief from the upcoming hot temperatures?

Looking forward to your replies.

Thank you in advance for all the advice/tips.

P.S. Attached is a photo of the window guard