for i, v in ipairs(workspace:GetDescendants()) do
        local name = string.lower(v.Name)
        if string.find(name, "cube") or 
           string.find(name, "wall") or 
           string.find(name, "box") or 
           string.find(name, "crate") or 
           string.find(name, "fence") or 
           string.find(name, "container") or 
           string.find(name, "concrete") or
           string.find(name, "cube.001") or
           string.find(name, "ship") or
           string.find(name, "invisible") or
           string.find(name, "plane.002") or
		   string.find(name, "plane.003") or
		   string.find(name, "ceiling.006") or
		   string.find(name, "acprop") or
			string.find(name, "cylinder.008") or
			string.find(name, "doorarchway.001") or
			string.find(name, "door3_low") or
			string.find(name, "cylinder.006") then
            v:Destroy()
     end
end