Vicks Warm Mist Humidifier - 3.8 litre tank - More comfortable sleep and easy breathing - Up to 99% Bacteria-Free mist - Rooms up to 37m2 - Bedroom suitable - Essential oil pad included - VH845

Product Information

Unless you are trying to relieve nasal congestion, your air humidity levels should not be high enough that it makes the room moist. Cool mist models are particularly good at easing respiratory and sinus discomfort associated with colds and coughs.

Rachel Rothman (she/her) is the chief technologist and executive technical director at the Good Housekeeping Institute, where she oversees testing methodology, implementation and reporting for all GH Labs. Through continuous testing of these types of devices dating back decades, our experts have gotten hands-on with two main types of humidifiers: cool-mist humidifiers and warm-mist humidifiers. However, if you are unable to place it in the center of the room then there are certain guidelines which should be kept in mind.

If you notice condensation on your walls or windows, the humidity levels are higher than they should be.

The major downside of warm mist humidifier is that the hot water can present a burn hazard, for example if the machine were to leak or tip over.While it is still soaking in the vinegar, take a soft bristled brush and scrub off any minerals on the heating element. You can usually find her sorting through piles of beauty products — and testing the best ones on camera. Turn the tank cap in the direction of the open lock symbol (usually counter-clockwise) and fill it with cool water. Using tap water creates a mineral residue in your humidifier's tank that can promote bacterial growth.

A Vicks humidifier adds moisture to your air and can help clear up congestion, and all you need to do to use one is fill it with water and turn it to the right setting. Our expert lab testers measure the decibel levels for each humidifier on the lowest and highest setting, as well as giving a subjective rating on how noisy they think each dehumidifier is.During her 15 years at Good Housekeeping, Rachel has had the opportunity to evaluate thousands of products, including toys and cars for GH’s annual awards programs and countless innovative breakthroughs in consumer tech and home improvement.