Here's why a humidifier can be so effective: Higher humidity levels have proven to kill off the virus. It's more likely than not that the flu virus will enter your home in the next few months, but a good humidifier can help reduce the survival of flu viruses that may be in the air.

Do humidifiers kill germs in the air?

While cool mist humidifiers do not actively kill bacteria or germs, they significantly reduce the number of germs in the air by adding moisture to it. ... So while they aren't specifically antimicrobial, when used with filtered water, the air is sure to be pure and clean.

What humidity level kills flu virus?

Homes can be kept at the optimal 40-60% relative humidity level through the use of a portable humidifier. In this humidity range, the flu virus survival in the air can be decreased by up to 30%.