Hi how can i make a blur screen GUI?

So i want to make a blur apear on screen or on a model(a character) when i equip a tool

If you go to lighting and click the plus, there is a blur effect there. You can go to properties and change how blurry it is by changing the “size” property

If you want to make it local, still put a blur effect there in the lighting but set the size property to 0. Then do some script in a local script in the tool like:

local parent = script.Parent
local blur = game.Lighting.blur
parent.Equipped:Connect(function()
	blur.Size = 20
	--put whatever number you want there.
end)