My Poor Cat Hates The Lawn Mower...

So my husband is outside mowing the lawn and my cat is freeeaking out. I mean constantly running from couch, to bedroom, to their little room, to the kitchen. Back and forth, back and forth. This is basically what he looks like:

When he comes closer to me, he calms down a little bit, but one loud noise and he zooms away. I feel so bad but it’s kind of funny. We keep most of our doors closed, so he’s going around trying to find an open door that isn’t already open lol. My poor baby.