Holy fucking shit bro, get a vacuum and suck the webbing up, you don't have many options this deep without fucking up your flowers.
You could gas the whole plant in an xxl trash bag with dry ice for 5 hours & water cure the flowers once chopped to help remove dead mites.
Don't forget to clean that room GOOD before growing anything again, use a preventive during veg and keep a clean habit with your flowering room.
Also, always treat clones before bringing them near your grow, even if your told they are clean.