Yes I can.
Their the wrong color, they hold their wings in a different way, They have only two distinct wings, I could go on and on..
The picture of the white fly may seem similar to you but its not. Even with a shitty picture. there are clear and distinct morphological differences.
One is a Diptera'n & the other is a Homoptera'n
& based on the fact that I also asked about an unused sink or drain (which moth flies breed in and white fly DO NOT)
turns out he does have an unused sink/drain in the room.
blam its a moth fly.