An oral irrigator( also called a dental water jet) is a home care device that uses a stream of pulsating water to remove plaque and food debris between teeth and below the gumline and improve gingival health.
Oral irrigator does not have a beneficial effect in reducing visible plaque" but suggests it may be beneficial to gingival health in addition to regular oral hygiene measures.
So basically its a good product for home you can use when ever you wants to use it . its cost is 5000 INR .