If the noise is lower, the AC service may be the cause. Magnetic fields from transformers can cause humming. Mains transformers typically cause an AC magnetic field around them. This magnetic field can be copled to wiring, electronics or signal transformers and cause humming.
Baby oil benefits: ear. Mineral or baby oil is good from treating common ear problems, such as wax build-up. For those that are hard of hearing, we recommend using a few drops of heated baby oil before going to your ear specialist. Then pour the drops in your ear, keeping your head cocked. Hold for a few minutes.
Do not wash it all away, just glide the shower hose over your the areas you applied once and you're good to go. After the shower, just tap your skin with the towel, that way most of the oil gets absorbed into your skin leaving it baby smooth. 2. This goes without saying, baby oil is an excellent massage oil. You get a lovely massage and you leave your skin smooth. Two birds one stone.