The show had already established how Tendi has green blood earlier in the series after an injury and it would have been an easy to infer detail compared to humans in the show....
EDIT: I’ve attached a rough map of the situation. The laundry room is the little room in the middle. The red dot is where the dryer vents into the garage....
Cold take: Lower Decks should have colored an Orion's blushing as green instead of red/pink. ( startrek.website )
The show had already established how Tendi has green blood earlier in the series after an injury and it would have been an easy to infer detail compared to humans in the show....
Ideas for electric clothes dryer that vents into attached garage
EDIT: I’ve attached a rough map of the situation. The laundry room is the little room in the middle. The red dot is where the dryer vents into the garage....