If there are any screws, you will first have to unscrew them with a screwdriver. Put the screws in a cup or a small bag. Then, pull straight down on the fan cover. You will see that the bathroom vent-fan cover is hanging down from just two spring clips.Click to see full answer. Keeping this in consideration, how do you remove a bathroom vent cover?To remove the cover, gently pull down on the cover to expose the fan; then squeeze the metal mounting wires on either side and slide them out of their slots. This will allow the cover to be completely removed from the fan housing.Also Know, how long do bathroom exhaust fans last? about ten years Then, do bathroom exhaust fans need to be cleaned? Bathroom exhaust vent fans need to be cleaned regularly. It’s very important to have an exhaust fan that’s vented to the outside in every bathroom in your home, and to run it whenever you shower or bathe and for 15-20 minutes afterward to remove excess moisture that can cause mold and mildew to form.How do you clean a dirty exhaust fan?Prepare a mix of water and soap or you can also add a mixture of 1/4 ammonia, 2 tbsp baking soda and 1 cup full of warm water. Put on the rubber gloves and, using the above mixture and cotton cloth, scrub the exhaust fan blades and then the rest of the body.