Some people are able to remove tonsil stones using a cotton swab or finger. Oral irrigators are also effective. Most electric oral irrigators are unsuitable for tonsil stone removal because they are too powerful and are likely to cause discomfort and rupture the tonsils, which could result in further complications such as infection. Irrigators that connect directly to the sink tap via a threaded attachment or otherwise are suitable for tonsil stone removal and everyday washing of the tonsils because they can jet water at low-pressure levels that the user can adjust by simply turning the sink tap, allowing for a continuous range of pressures to suit each user's requirements.