A humidistat controls the level of humidity put out by a humidifier; essential on a "warm mist" humidifier to prevent over-moisturizing a room.
Sizes of humidifiers and air purifiers range from a tabletop size for a single room, to a large household unit that can humidify much of an average size home.
To help prevent your wooden skewers from burning when grilling kabobs, soak them in water prior to use for 20-30 minutes.