How do i remove the green haze

One of two issues are possible here:

Model indicated has a convergence circuit= colors are skewed or even 3d looking is convergence problem. Set has Akai name but is made by Samsung--if a convergence issue can be a do it yourself repair.

I can explain what is needed if that is the problem (see some attached photos).

The other issue seen is if on a black and white picture (color turned off) stand back and look at the screen= is it yellow looking or gray?

If yellow looking the Glycol (a cooling fluid in each tube) is contaminated- usually in these sets the blue is first= no real blue leaves a yellow screen.

Look at the photos and try to tell me which issue you have.